Enhance CodeBlockEditor styling for minimal mode

- Added a class name 'minimal-code-block-editor' to the div in minimal mode for improved styling and potential CSS targeting.

src/components/Dashboard/common/CodeBlockEditor.jsx

@@ -140,7 +140,10 @@ export default function CodeBlockEditor({
   return (
     <>
       {minimal ? (
-        <div style={{ maxWidth: '300px' }}>
+        <div
+          style={{ maxWidth: '300px' }}
+          className='minimal-code-block-editor'
+        >
           <Link
             onClick={() => {
               setCodeMirrorOpen(true)