Fix Gmail popup compose box capitalization by reordering containsHtmlContent logic

Author: hrai

src/utils.js

@@ -914,7 +914,7 @@ export function containsHtmlContent(element) {
     if (stripped === '<br>' || stripped === '<br/>') {
       return true; // single br considered html content
     }
-    return false; // content that ends with br but has other text should be treated as plain text
+    // For other cases with <br> and text, continue to Gmail-specific logic or return false
   }
 
   // Gmail compose frequently uses structural wrapper tags (e.g. nested <div>/<span>/<p>)
@@ -939,6 +939,11 @@ export function containsHtmlContent(element) {
     }
   }
 
+  // For non-Gmail or when no structural tags found on Gmail, check for <br> with content
+  if (content && brRegex.test(content)) {
+    return false; // content that ends with br but has other text should be treated as plain text
+  }
+
   // Slack uses a controlled editor that often emits nested wrapper tags. When the markup
   // is purely structural we treat it as plain text so the fast-path text-node update can
   // operate without resetting innerHTML (which tends to break Slack). However, if the