Fix validation logic to show all error messages and add explicit class name

- Change validation logic from if/else chain to independent if statements This ensures both "Author" and "Text" error messages are displayed when both fields are blank, rather than just showing one error at a time - Add explicit class name CommentsController for better debugging and compatibility with future transpiler changes 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>

Author: justin808

client/app/controllers/comments_controller.js

@@ -7,7 +7,7 @@ import { mangle } from 'marked-mangle';
 marked.use(gfmHeadingId());
 marked.use(mangle());
 
-export default class extends Controller {
+export default class CommentsController extends Controller {
  static targets = ['commentList', 'commentAuthor', 'commentText', 'commentRefresh', 'alertDiv', 'errorList'];
 
  resetText() {
@@ -22,10 +22,8 @@ export default class extends Controller {
  errorList.innerHTML = '';
  if (!inputAuthor.value) {
  errors.push('Author');
- } else if (!inputText.value) {
- errors.push('Text');
- } else {
- errors.push('Author');
+ }
+ if (!inputText.value) {
  errors.push('Text');
  }
  errors.forEach((error) => {