ui frotneedn fixes

frontend/src/pages/Sites/PostEditor.tsx

@@ -247,8 +247,8 @@ export default function PostEditor() {
           <Button
             variant="outline"
             onClick={() => navigate(`/sites/${siteId}/content`)}
+            startIcon={<XIcon className="w-4 h-4" />}
           >
-            <XIcon className="w-4 h-4 mr-2" />
             Cancel
           </Button>
           <Button
@@ -256,8 +256,8 @@ export default function PostEditor() {
             onClick={handleSave}
             disabled={saving || (content.status === 'publish' && validationResult && !validationResult.is_valid)}
             title={content.status === 'publish' && validationResult && !validationResult.is_valid ? 'Please fix validation errors before publishing' : undefined}
+            startIcon={<SaveIcon className="w-4 h-4" />}
           >
-            <SaveIcon className="w-4 h-4 mr-2" />
             {saving ? 'Saving...' : content.status === 'publish' ? 'Publish' : 'Save Post'}
           </Button>
         </div>