Tweaks (#22630)

* fix stage overlay size

* add audio filter config and load audio labels

* remove add button from object and audio labels in settings

* tests

* update classification docs

* tweak wording

* don't require restart for timestamp_style changes

* add optional i18n prefix for select widgets

* use i18n enum prefix for timestamp position

* add i18n for all presets

web/public/locales/en/config/global.json

@@ -752,7 +752,7 @@
   },
   "live": {
     "label": "Live playback",
-    "description": "Settings used by the Web UI to control live stream resolution and quality.",
+    "description": "Settings to control the jsmpeg live stream resolution and quality. This does not affect restreamed cameras that use go2rtc for live view.",
     "streams": {
       "label": "Live stream names",
       "description": "Mapping of configured stream names to restream/go2rtc names used for live playback."