i18n fixes (#17184)

* update PR template

* fix hook

* fix input

* fix hook

* add all audio detector keys

* add frigate+ keys

* fix spelling, formatting, and spacing

* fix labels

* capitalization

* fix timestamp

* fix menu

* fix plus text

* fix download label

* docs

* fix docs build

* fix docs formatting

web/public/locales/en/components/camera.json

@@ -1,8 +1,8 @@
 {
   "group": {
     "label": "Camera Groups",
-    "add": "Add camera groups",
-    "edit": "Edit camera groups",
+    "add": "Add Camera Group",
+    "edit": "Edit Camera Group",
     "delete": {
       "label": "Delete Camera Group",
       "confirm": "Confirm Delete",