i18n workflow improvements and tweaks (#22586)

* mobile button spacing

* prevent console warning about div being descendant of p

* ensure consistent spacing

* add missing i18n keys

* i18n fixes

- add missing translations
- fix dot notation keys

* use plain string

* add missing key

* add i18next-cli commands for extraction and status

also add false positives removal for several keys

* add i18n key check step to PR workflow

* formatting

web/public/locales/en/views/live.json

@@ -1,6 +1,8 @@
 {
-  "documentTitle": "Live - Frigate",
-  "documentTitle.withCamera": "{{camera}} - Live - Frigate",
+  "documentTitle": {
+    "default": "Live - Frigate",
+    "withCamera": "{{camera}} - Live - Frigate"
+  },
   "lowBandwidthMode": "Low-bandwidth Mode",
   "twoWayTalk": {
     "enable": "Enable Two Way Talk",