feat(ui): add per-user volume controls (#17)

apps/chanora_flutter/lib/l10n/app_en.arb

@@ -172,6 +172,7 @@
   "channelJoinFailedFamilyFull": "Channel family limit reached.",
   "channelJoinFailedPrivate": "This channel is private.",
   "channelJoinFailedTimeout": "Could not join channel: the server didn't respond in time.",
+  "channelJoinFailedFlooding": "Too many channel switches. Please wait a moment.",
   "channelJoinFailedGeneric": "Could not join channel: {message}",
   "@channelJoinFailedGeneric": {
     "placeholders": {
@@ -284,5 +285,17 @@
       "message": { "type": "String" }
     }
   },
+  "clientVolumeAction": "User Volume",
+  "clientVolumeTitle": "{name} — volume",
+  "@clientVolumeTitle": {
+    "placeholders": { "name": { "type": "String" } }
+  },
+  "clientVolumeLabel": "{percent}%",
+  "@clientVolumeLabel": {
+    "placeholders": { "percent": { "type": "int" } }
+  },
+  "clientVolumeMuteAction": "Mute user",
+  "clientVolumeUnmuteAction": "Unmute user",
+  "clientVolumeResetAction": "Reset to default",
   "permissionDenied": "Permission Denied"
 }