feat: (mobile) open asset viewer from album activity page (#23182)

* feat(mobile): open assetviewer via album activities page

* adjust ui behavior: keep current asset & disable initial forcus

* fix: Run 'make build' and 'make pigeon'

mobile/lib/presentation/widgets/album/drift_activity_text_field.dart

@@ -36,10 +36,6 @@ class _DriftActivityTextFieldState extends ConsumerState<DriftActivityTextField>
     inputController = TextEditingController();
     inputFocusNode = FocusNode();
 
-    if (!widget.isBottomSheet) {
-      inputFocusNode.requestFocus();
-    }
-
     inputFocusNode.addListener(() {
       if (inputFocusNode.hasFocus) {
         widget.onKeyboardFocus?.call();