Notices and status bar improvements (#24459)

* Notice and status bar improvements

Status bar problems added in the same pass got the same `Date.now()` id and overwrote each other, so usually only one showed. Messages now fall back to their text as the id. The desktop status bar shows the most severe message with a count of the rest that opens a popover listing all of them, and the mobile drawer stacks them vertically instead of placing them side by side.

Dismissing a notice hid it for good, so a detector that restarted again after a dismissal was never shown. Dismiss is replaced by acknowledge, which hides a notice until it happens again, and mute, which hides it permanently. Kinds that never repeat (config and stream checks, the update notice) can only be muted. `reopen_at_count` is removed since acknowledge covers the failed login case.

* move camera CPU warnings to notices

High ffmpeg and detect CPU warnings sat in the status bar with no way to dismiss them. They're now `ffmpeg_high_cpu` and `detect_high_cpu` notices, raised per episode by the same tracker as skipped detections. Also stop failed login attempts held from before an acknowledgement from reopening the notice.

* fix mypy and handle missing cpu stats in notices

docs/docs/troubleshooting/faqs.md

@@ -184,6 +184,6 @@ Filters and masks only hide the incorrect result - they don't teach Frigate what
 
 ### Where do I see problems Frigate has detected?
 
-Open System > Health. The Notices list keeps a record of problems Frigate has found, and you can dismiss any entry to acknowledge it. Ongoing conditions, such as an offline camera or recordings deleted before their retention period, appear in the status bar for admins until they clear, and the status bar links to the Notices list while it has undismissed entries. On mobile, tap the warning icon in the bottom navigation bar to see them.
+Open System > Health. The Notices list keeps a record of problems Frigate has found. Acknowledge an entry to hide it until the problem happens again, or mute it to hide it for good. Hidden entries stay listed under Show hidden in the filter. Ongoing conditions, such as an offline camera or recordings deleted before their retention period, appear in the status bar for admins until they clear, and the status bar links to the Notices list while it has entries showing. On mobile, tap the warning icon in the bottom navigation bar to see them.
 
 The Hardware section below the notices shows whether the detection hardware, hardware acceleration, and enrichment devices in your config were found and are being used, so a GPU that silently fell back to the CPU shows up as a warning. Run stream checks to probe every camera's streams for the same problems the camera wizard reports.

docs/static/frigate-api.yaml

@@ -4174,19 +4174,20 @@ paths:
         Get notices, most severe first.
 
         Args:
-            include_dismissed: Also return dismissed notices, for the history view
+            include_hidden: Also return acknowledged and muted notices, for the
+                hidden list
 
         Returns:
             The notices
       operationId: get_notices_notices_get
       parameters:
-        - name: include_dismissed
+        - name: include_hidden
           in: query
           required: false
           schema:
             type: boolean
             default: false
-            title: Include Dismissed
+            title: Include Hidden
       responses:
         '200':
           description: Successful Response
@@ -4221,16 +4222,16 @@ paths:
       security:
         - frigateAdminAuth: []
       x-required-role: admin
-  /notices/dismissed_checks:
+  /notices/muted_checks:
     get:
       tags:
         - Notices
-      summary: Get Dismissed Checks
+      summary: Get Muted Checks
       description: |-
         **Access:** Admin role required.
 
-        Get the dismissed config and stream check rows, newest first.
-      operationId: get_dismissed_checks_notices_dismissed_checks_get
+        Get the muted config and stream check rows, newest first.
+      operationId: get_muted_checks_notices_muted_checks_get
       responses:
         '200':
           description: Successful Response
@@ -4240,16 +4241,16 @@ paths:
       security:
         - frigateAdminAuth: []
       x-required-role: admin
-  /notices/dismissed:
+  /notices/hidden:
     delete:
       tags:
         - Notices
-      summary: Purge Dismissed
+      summary: Unhide All Notices
       description: |-
         **Access:** Admin role required.
 
-        Delete every dismissed notice and check row so each can show again.
-      operationId: purge_dismissed_notices_dismissed_delete
+        Show every acknowledged and muted notice and check row again.
+      operationId: unhide_all_notices_notices_hidden_delete
       responses:
         '200':
           description: Successful Response
@@ -4259,18 +4260,83 @@ paths:
       security:
         - frigateAdminAuth: []
       x-required-role: admin
-  /notices/{notice_id}/dismiss:
+  /notices/{notice_id}/acknowledge:
     post:
       tags:
         - Notices
-      summary: Dismiss Notice
+      summary: Acknowledge Notice
       description: |-
         **Access:** Admin role required.
 
-        Hide a notice or a config or stream check row.
+        Hide a notice until it happens again.
 
-        It stays hidden if the same problem happens again.
-      operationId: dismiss_notice_notices__notice_id__dismiss_post
+        Config and stream check rows and the update notice never repeat, so they
+        can only be muted.
+      operationId: acknowledge_notice_notices__notice_id__acknowledge_post
+      parameters:
+        - name: notice_id
+          in: path
+          required: true
+          schema:
+            type: string
+            title: Notice Id
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema: {}
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+      security:
+        - frigateAdminAuth: []
+      x-required-role: admin
+  /notices/{notice_id}/mute:
+    post:
+      tags:
+        - Notices
+      summary: Mute Notice
+      description: |-
+        **Access:** Admin role required.
+
+        Hide a notice or a config or stream check row for good.
+      operationId: mute_notice_notices__notice_id__mute_post
+      parameters:
+        - name: notice_id
+          in: path
+          required: true
+          schema:
+            type: string
+            title: Notice Id
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema: {}
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+      security:
+        - frigateAdminAuth: []
+      x-required-role: admin
+  /notices/{notice_id}/hidden:
+    delete:
+      tags:
+        - Notices
+      summary: Unhide Notice
+      description: |-
+        **Access:** Admin role required.
+
+        Show an acknowledged or muted notice or check row again.
+      operationId: unhide_notice_notices__notice_id__hidden_delete
       parameters:
         - name: notice_id
           in: path