Add own control buttons for element-call (#2744)

* add mutation observer hok

* add hook to read speaking member by observing iframe content

* display speaking member name in call status bar and improve layout

* fix shrining

* add joined call control bar

* remove chat toggle from room header

* change member speaking icon to mic

* fix joined call control appear in other

* show spinner on end call button

* hide call statusbar for mobile view when room is selected

* make call statusbar more mobile friendly

* fix call status bar item align

src/app/features/call-status/LiveChip.tsx

@@ -128,7 +128,7 @@ export function LiveChip({ count, room, members }: LiveChipProps) {
         radii="Pill"
         onClick={handleOpenMenu}
       >
-        <Text className={css.LiveChipText} as="span" size="L400">
+        <Text className={css.LiveChipText} as="span" size="L400" truncate>
           {count} Live
         </Text>
       </Chip>