Address remaining PR comments

src/app/components/VoiceWidget.svelte

@@ -1,5 +1,4 @@
 <script lang="ts">
-  import {get} from "svelte/store"
   import {displayRelayUrl} from "@welshman/util"
   import Microphone from "@assets/icons/microphone.svg?dataurl"
   import MicrophoneOff from "@assets/icons/microphone-off.svg?dataurl"
@@ -17,10 +16,8 @@
   )
   const spaceName = $derived($currentVoiceSession ? displayRelayUrl($currentVoiceSession.url) : "")
 
-  const handleDisconnect = () => leaveVoiceRoom()
-  const handleToggleMute = () => toggleMute()
   const showRoomDetail = () => {
-    const session = get(currentVoiceSession)
+    const session = $currentVoiceSession
     if (session) pushModal(RoomDetail, {url: session.url, h: session.h})
   }
 </script>
@@ -41,10 +38,10 @@
     <div class="flex items-center gap-1">
       <Button
         class="btn btn-sm btn-square {$currentVoiceSession.muted ? 'btn-error' : 'btn-ghost'}"
-        onclick={handleToggleMute}>
+        onclick={toggleMute}>
         <Icon icon={$currentVoiceSession.muted ? MicrophoneOff : Microphone} size={4} />
       </Button>
-      <Button class="btn btn-sm btn-square btn-error" onclick={handleDisconnect}>
+      <Button class="btn btn-sm btn-square btn-error" onclick={leaveVoiceRoom}>
         <Icon icon={PhoneRounded} size={4} />
       </Button>
     </div>