Fix: Add regex denoter and improve celerybeat gitignore (#1446)

* (bugfix): Added celerybeat extras to gitignore

* (bugfix): fixed missing regex denoter

* Fix .dockerignore node_modules pattern and add comprehensive exclusions

- Fix #1398: Change 'node_modules' to '**/node_modules' to exclude all nested directories
- Add patterns for Python bytecode, IDE files, logs, and build artifacts
- Consolidate node_modules patterns in .gitignore to use **/node_modules/

.gitignore

@@ -8,7 +8,7 @@ media_files/uploads/
 media_files/tinymce_media/
 media_files/userlogos/
 postgres_data/
-celerybeat-schedule
+celerybeat-schedule*
 logs/
 pids/
 static/admin/
@@ -20,8 +20,8 @@ static/drf-yasg
 cms/local_settings.py
 deploy/docker/local_settings.py
 yt.readme.md
-/frontend-tools/video-editor/node_modules
-/frontend-tools/video-editor/client/node_modules
+# Node.js dependencies (covers all node_modules directories, including frontend-tools)
+**/node_modules/
 /static_collected
 /frontend-tools/video-editor-v1
 frontend-tools/.DS_Store