TF-735 Display button code view in composer web

lib/features/composer/presentation/mixin/rich_text_button_mixin.dart

@@ -10,14 +10,15 @@ mixin RichTextButtonMixin {
     required String path,
     required bool? isSelected,
     required VoidCallback onTap,
-    String? tooltip
+    String? tooltip,
+    double opacity = 1.0,
   }){
     return buildIconWeb(
       icon: SvgPicture.asset(
           path,
           color: isSelected == true
-              ? Colors.black
-              : AppColor.colorDefaultRichTextButton,
+              ? Colors.black.withOpacity(opacity)
+              : AppColor.colorDefaultRichTextButton.withOpacity(opacity),
           fit: BoxFit.fill),
       iconPadding: const EdgeInsets.all(4),
       colorFocus: Colors.white,
@@ -31,10 +32,13 @@ mixin RichTextButtonMixin {
     required IconData? iconData,
     required Color? colorSelected,
     required VoidCallback onTap,
-    String? tooltip
+    String? tooltip,
+    double opacity = 1.0,
   }){
     return buildIconWeb(
-      icon: Icon(iconData, color: colorSelected ?? Colors.black, size: 20),
+      icon: Icon(iconData,
+          color: (colorSelected ?? Colors.black).withOpacity(opacity),
+          size: 20),
       iconPadding: const EdgeInsets.all(4),
       colorSelected: colorSelected == Colors.white
         ? AppColor.colorFocusRichTextButton
@@ -50,13 +54,16 @@ mixin RichTextButtonMixin {
     required IconData? iconData,
     required Color? colorSelected,
     required VoidCallback onTap,
-    String? tooltip
+    String? tooltip,
+    double opacity = 1.0,
   }){
     final newColor = colorSelected == Colors.white
         ? AppColor.colorDefaultRichTextButton
         : colorSelected;
     return buildIconWeb(
-      icon: Icon(iconData, color: newColor ?? AppColor.colorDefaultRichTextButton, size: 20),
+      icon: Icon(iconData,
+          color: (newColor ?? AppColor.colorDefaultRichTextButton).withOpacity(opacity),
+          size: 20),
       iconPadding: const EdgeInsets.all(4),
       colorSelected: newColor == Colors.white
           ? AppColor.colorFocusRichTextButton