feat(ui-flow): composer focus after set-activity-image (Phase 544)

Restore message composer focus after activity image upload IPC.

Co-authored-by: Cursor <[email protected]>

index.js

@@ -1017,6 +1017,12 @@ async function dispatchUiMessage (platform, msg, hooks = {}) {
       mimeType: msg.mimeType,
       slot: msg.slot || 'large'
     })
+    if (platform.activeChannelId && platform.mode === 'guild') {
+      send({
+        type: 'composer-focus-channel',
+        channelId: platform.activeChannelId
+      })
+    }
     pushState()
     return true
   }