fix(letterboxd): extract title from data-item-name instead of img alt (#405)

The previous regex extracted from `<img alt="...">` which contains
"Poster for [Title]" instead of the clean title.

- Use `data-item-name` attribute which has the actual title
- Strip year suffix since year is extracted separately from
  `data-item-full-display-name`

Co-authored-by: bitr8 <bitr8@users.noreply.github.com>

server/lib/collections/sources/letterboxd.ts

@@ -723,7 +723,7 @@ export class LetterboxdCollectionSync extends BaseCollectionSync<'letterboxd'> {
       const filmIdRegex = /data-film-id="([^"]+)"/;
       const targetLinkRegex = /data-target-link="([^"]+)"/;
       const fullDisplayNameRegex = /data-item-full-display-name="([^"]+)"/;
-      const titleRegex = /<img[^>]*alt="([^"]+)"/;
+      const titleRegex = /data-item-name="([^"]+)"/;
 
       let matches: RegExpMatchArray[] = [];
       let patternUsed = 0;
@@ -776,6 +776,8 @@ export class LetterboxdCollectionSync extends BaseCollectionSync<'letterboxd'> {
 
         // Decode HTML entities in the title
         let title = titleMatch[1];
+        // Strip year suffix like "(2004)" since year is extracted separately
+        title = title.replace(/\s*\(\d{4}\)$/, '');
         title = title
           .replace(/&lrm;/g, '') // Remove left-to-right mark
           .replace(/&rlm;/g, '') // Remove right-to-left mark