Remove no-text rooms, highlight active room, fix custom voice room icons

src/app/components/VoiceRoomItem.svelte

@@ -1,8 +1,6 @@
 <script lang="ts">
   import cx from "classnames"
   import {loadProfile, displayProfileByPubkey} from "@welshman/app"
-  import Volume from "@assets/icons/volume.svg?dataurl"
-  import VolumeLoud from "@assets/icons/volume-loud.svg?dataurl"
   import SecondaryNavItem from "@lib/components/SecondaryNavItem.svelte"
   import ProfileCircle from "@app/components/ProfileCircle.svelte"
   import RoomImage from "@app/components/RoomImage.svelte"
@@ -62,7 +60,7 @@
       {#if joinAbortController}
         <span class="loading loading-spinner loading-sm"></span>
       {:else}
-        <RoomImage {url} {h} size={4} fallbackIcon={isActive ? VolumeLoud : Volume} />
+        <RoomImage {url} {h} size={4} />
       {/if}
       <RoomName {url} {h} />
     </div>