Improve camera group live view grids (#24461)

* rework live dashboard grid layout and add natural mode

* hide natural aspect and layout import on phones

* fix merge conflict

* add confirmation dialog for clearing groups and streaming settings

* add confirmation dialog for natural aspect switch

* clean up

* remove note

* wording tweak

* remove unused

* fixes

web/public/locales/en/common.json

@@ -131,6 +131,7 @@
     "close": "Close",
     "expand": "Expand",
     "collapse": "Collapse",
+    "clear": "Clear",
     "copy": "Copy",
     "copiedToClipboard": "Copied to clipboard",
     "back": "Back",