TF-735 Add CodeView type in rich text button

lib/features/composer/presentation/model/code_view_state.dart

@@ -0,0 +1,5 @@
+
+enum CodeViewState {
+  enabled,
+  disabled
+}

lib/features/composer/presentation/model/dropdown_menu_font_status.dart

@@ -0,0 +1,5 @@
+
+enum DropdownMenuFontStatus {
+  open,
+  closed
+}

lib/features/composer/presentation/model/rich_text_style_type.dart

@@ -10,7 +10,8 @@ enum RichTextStyleType {
   underline,
   strikeThrough,
   textColor,
-  textBackgroundColor;
+  textBackgroundColor,
+  codeView;
 
   String get commandAction {
     switch (this) {
@@ -43,6 +44,8 @@ enum RichTextStyleType {
         return imagePaths.icStyleUnderline;
       case strikeThrough:
         return imagePaths.icStyleStrikeThrough;
+      case codeView:
+        return imagePaths.icStyleCodeView;
       default:
         return '';
     }
@@ -73,6 +76,8 @@ enum RichTextStyleType {
         return AppLocalizations.of(context).formatTextColor;
       case textBackgroundColor:
         return AppLocalizations.of(context).formatTextBackgroundColor;
+      case codeView:
+        return AppLocalizations.of(context).codeView;
       default:
         return '';
     }