fix: autofocus after creating a new option

frontend/app_flowy/lib/plugins/grid/application/cell/select_option_editor_bloc.dart

@@ -103,11 +103,19 @@ class SelectOptionCellEditorBloc
   void _filterOption(String optionName, Emitter<SelectOptionEditorState> emit) {
     final _MakeOptionResult result =
         _makeOptions(Some(optionName), state.allOptions);
-    emit(state.copyWith(
-      filter: Some(optionName),
-      options: result.options,
-      createOption: result.createOption,
-    ));
+    if (optionName.isEmpty) {
+      emit(state.copyWith(
+        filter: Some(optionName),
+        options: result.options,
+        createOption: none(),
+      ));
+    } else {
+      emit(state.copyWith(
+        filter: Some(optionName),
+        options: result.options,
+        createOption: result.createOption,
+      ));
+    }
   }
 
   void _loadOptions() {

frontend/app_flowy/lib/plugins/grid/presentation/widgets/cell/select_option_cell/extension.dart

@@ -100,11 +100,7 @@ class SelectOptionTag extends StatelessWidget {
       backgroundColor: color,
       labelPadding: const EdgeInsets.symmetric(horizontal: 6),
       selected: true,
-      onSelected: (_) {
-        if (onSelected != null) {
-          onSelected!();
-        }
-      },
+      onSelected: (_) => onSelected?.call(),
     );
   }
 }

frontend/app_flowy/lib/plugins/grid/presentation/widgets/cell/select_option_cell/select_option_editor.dart

@@ -22,7 +22,7 @@ import '../../header/type_option/select_option_editor.dart';
 import 'extension.dart';
 import 'text_field.dart';
 
-const double _editorPannelWidth = 300;
+const double _editorPanelWidth = 300;
 
 class SelectOptionCellEditor extends StatelessWidget with FlowyOverlayDelegate {
   final GridSelectOptionCellController cellController;
@@ -72,8 +72,8 @@ class SelectOptionCellEditor extends StatelessWidget with FlowyOverlayDelegate {
     //
     FlowyOverlay.of(context).insertWithAnchor(
       widget: OverlayContainer(
-        constraints: BoxConstraints.loose(const Size(_editorPannelWidth, 300)),
-        child: SizedBox(width: _editorPannelWidth, child: editor),
+        constraints: BoxConstraints.loose(const Size(_editorPanelWidth, 300)),
+        child: SizedBox(width: _editorPanelWidth, child: editor),
       ),
       identifier: SelectOptionCellEditor.identifier(),
       anchorContext: context,
@@ -158,7 +158,7 @@ class _TextField extends StatelessWidget {
           child: SelectOptionTextField(
             options: state.options,
             selectedOptionMap: optionMap,
-            distanceToText: _editorPannelWidth * 0.7,
+            distanceToText: _editorPanelWidth * 0.7,
             tagController: _tagController,
             onClick: () => FlowyOverlay.of(context)
                 .remove(SelectOptionTypeOptionEditor.identifier),

frontend/app_flowy/lib/plugins/grid/presentation/widgets/cell/select_option_cell/text_field.dart

@@ -32,10 +32,10 @@ class SelectOptionTextField extends StatelessWidget {
     required this.onNewTag,
     required this.newText,
     this.onClick,
-    TextEditingController? controller,
+    TextEditingController? textController,
     FocusNode? focusNode,
     Key? key,
-  })  : _controller = controller ?? TextEditingController(),
+  })  : _controller = textController ?? TextEditingController(),
         _focusNode = focusNode ?? FocusNode(),
         super(key: key);
 
@@ -48,7 +48,7 @@ class SelectOptionTextField extends StatelessWidget {
       textfieldTagsController: tagController,
       initialTags: selectedOptionMap.keys.toList(),
       focusNode: _focusNode,
-      textSeparators: const [' ', ','],
+      textSeparators: const [','],
       inputfieldBuilder: (BuildContext context, editController, focusNode,
           error, onChanged, onSubmitted) {
         return ((context, sc, tags, onTagDelegate) {
@@ -70,6 +70,7 @@ class SelectOptionTextField extends StatelessWidget {
 
               if (text.isNotEmpty) {
                 onNewTag(text);
+                focusNode.requestFocus();
               }
             },
             maxLines: 1,