chore: code cleanup

Author: richardshiue

frontend/appflowy_flutter/lib/plugins/ai_chat/presentation/chat_input/desktop_ai_prompt_input.dart

@@ -253,7 +253,11 @@ class _DesktopAIPromptInputState extends State<DesktopAIPromptInput> {
     // get the attached files and mentioned pages
     final metadata = context.read<AIPromptInputBloc>().consumeMetadata();
 
-    widget.onSubmitted(trimmedText, showPredefinedFormatSection ? predefinedFormat : null, metadata);
+    widget.onSubmitted(
+      trimmedText,
+      showPredefinedFormatSection ? predefinedFormat : null,
+      metadata,
+    );
   }
 
   void handleTextControllerChanged() {

frontend/appflowy_flutter/lib/plugins/ai_chat/presentation/chat_input/mobile_ai_prompt_input.dart

@@ -184,11 +184,11 @@ class _MobileAIPromptInputState extends State<MobileAIPromptInput> {
     // get the attached files and mentioned pages
     final metadata = context.read<AIPromptInputBloc>().consumeMetadata();
 
-    if (showPredefinedFormatSection) {
-      widget.onSubmitted(trimmedText, predefinedFormat, metadata);
-    } else {
-      widget.onSubmitted(trimmedText, null, metadata);
-    }
+    widget.onSubmitted(
+      trimmedText,
+      showPredefinedFormatSection ? predefinedFormat : null,
+      metadata,
+    );
   }
 
   void handleTextControllerChange() {