feat(call): add docked call panel and remote cursor overlay

- Implemented DockedCallPanel component to render the docked call interface when an active call is present.
- Created RemoteCursorOverlay component to display remote cursor positions during screen sharing.
- Added hooks for managing docked call state and remote cursor functionality.
- Introduced pending drag state management for seamless transitions between docked and floating states.
- Developed embed filter management components for personal and room-wide settings, allowing users to customize URL embed visibility.
- Implemented auto-joining functionality for rooms within spaces, enhancing user experience during space navigation.
- Added state management for tracking joining progress of rooms in spaces.

src/app/features/settings/audio/Audio.tsx

@@ -23,6 +23,8 @@ import { SequenceCard } from '../../../components/sequence-card';
 import { SettingTile } from '../../../components/setting-tile';
 import { SequenceCardStyle } from '../styles.css';
 import { stopPropagation } from '../../../utils/keyboard';
+import { useSetting } from '../../../state/hooks/settings';
+import { settingsAtom } from '../../../state/settings';
 
 /** Represents an audio device (microphone or speaker) */
 interface AudioDevice {
@@ -447,6 +449,7 @@ export function Audio({ requestClose }: AudioProps) {
   const [speakers, setSpeakers] = useState<AudioDevice[]>([]);
   const [settings, setSettings] = useState<AudioSettings>(loadAudioSettings);
   const [permissionStatus, setPermissionStatus] = useState<'granted' | 'denied' | 'prompt'>('prompt');
+  const [showRemoteCursor, setShowRemoteCursor] = useSetting(settingsAtom, 'showRemoteCursor');
 
   useEffect(() => {
     const loadDevices = async () => {
@@ -797,6 +800,17 @@ export function Audio({ requestClose }: AudioProps) {
                     />
                   }
                 />
+                <SettingTile
+                  title="Show Remote Cursor"
+                  description="Display other participants' cursors on shared screens. Both users must have this enabled."
+                  after={
+                    <Switch
+                      variant="Primary"
+                      value={showRemoteCursor}
+                      onChange={setShowRemoteCursor}
+                    />
+                  }
+                />
               </SequenceCard>
 
               <SequenceCard