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/system.json

@@ -35,7 +35,8 @@
         "cameras_count_other": "{{count}} Cameras"
       },
       "empty": "No messages captured yet",
-      "count": "{{count}} messages",
+      "count_one": "{{count}} message",
+      "count_other": "{{count}} messages",
       "expanded": {
         "payload": "Payload"
       }