✨(frontend) notify participant when her was muted

Make sure a participant is notified when another one muted her.
It will help display a notification to alert the participant.

src/frontend/src/features/notifications/NotificationType.ts

@@ -1,5 +1,6 @@
 export enum NotificationType {
   ParticipantJoined = 'participantJoined',
   HandRaised = 'handRaised',
+  ParticipantMuted = 'participantMuted',
   // todo - implement message received notification
 }

src/frontend/src/features/rooms/livekit/api/muteParticipant.ts

@@ -3,11 +3,23 @@ import Source = Track.Source
 import { fetchServerApi } from './fetchServerApi'
 import { buildServerApiUrl } from './buildServerApiUrl'
 import { useRoomData } from '../hooks/useRoomData'
+import { useRoomContext } from '@livekit/components-react'
+import { NotificationType } from '@/features/notifications/NotificationType'
 
 export const useMuteParticipant = () => {
   const data = useRoomData()
+  const room = useRoomContext()
 
-  const muteParticipant = (participant: Participant) => {
+  const notifyParticipant = async (participant: Participant) => {
+    const encoder = new TextEncoder()
+    const data = encoder.encode(NotificationType.ParticipantMuted)
+    await room.localParticipant.publishData(data, {
+      reliable: true,
+      destinationIdentities: [participant.identity],
+    })
+  }
+
+  const muteParticipant = async (participant: Participant) => {
     if (!data || !data?.livekit) {
       throw new Error('Room data is not available')
     }
@@ -18,7 +30,9 @@ export const useMuteParticipant = () => {
     if (!trackSid) {
       throw new Error('Missing audio track')
     }
-    return fetchServerApi(
+
+    try {
+      const response = await fetchServerApi(
         buildServerApiUrl(
           data.livekit.url,
           'twirp/livekit.RoomService/MutePublishedTrack'
@@ -34,6 +48,15 @@ export const useMuteParticipant = () => {
           }),
         }
       )
+
+      await notifyParticipant(participant)
+
+      return response
+    } catch (error) {
+      console.error(
+        `Failed to mute participant ${participant.identity}: ${error instanceof Error ? error.message : 'Unknown error'}`
+      )
+    }
   }
   return { muteParticipant }
 }