feat: f2 to rename current view (#4522)

* feat: cmd+shift+r to rename current view

* test: change cmd to f2 and add test

* chore: code review

* fix: unawaited future

frontend/appflowy_flutter/lib/workspace/application/sidebar/rename_view/rename_view_bloc.dart

@@ -0,0 +1,37 @@
+import 'package:appflowy_popover/appflowy_popover.dart';
+import 'package:bloc/bloc.dart';
+import 'package:freezed_annotation/freezed_annotation.dart';
+
+part 'rename_view_bloc.freezed.dart';
+
+class RenameViewBloc extends Bloc<RenameViewEvent, RenameViewState> {
+  RenameViewBloc(PopoverController controller)
+      : _controller = controller,
+        super(RenameViewState(controller: controller)) {
+    on<RenameViewEvent>((event, emit) {
+      event.when(
+        open: () => _controller.show(),
+      );
+    });
+  }
+
+  final PopoverController _controller;
+
+  @override
+  Future<void> close() async {
+    _controller.close();
+    await super.close();
+  }
+}
+
+@freezed
+class RenameViewEvent with _$RenameViewEvent {
+  const factory RenameViewEvent.open() = _Open;
+}
+
+@freezed
+class RenameViewState with _$RenameViewState {
+  const factory RenameViewState({
+    required PopoverController controller,
+  }) = _RenameViewState;
+}