Merge branch 'hotfix/3.0.5'
Correctly reset fallback, default and "do not copy" fields (see #5252)
Do not override the header and footer height in the layout builder (see #5368)
Only render the previous and next links if there are events (see #5426)
Remove a duplicate request parameter in the event reader module (see #5382)
Do not show `mail_` templates from theme folders (see #5379)
Pass the model instead of the collection to `getArticle()` and `getContentElement()`
Show all articles if the article list module is in the same column (see #5373)
Update the `music_academy.sql` file
Do not store the module status in the `autoload.ini` file
Only apply the CSS class "mandatory" if a field is empty (follow up on #4730)
Make the slider CSS more markup agnostic (see #4600)
Add a missing hash in the changelog
Revert "Make `Controller::loadDataContainer()` public static"

Since this is a backwards compatibility break, the change is postponed until Contao 4.
Show the database ID of a file in the file popup (see #5211)
Restore `cursor:move` for sortable lists
Bypass the Combiner cache in debug mode
Dynamically adjust the "indent" class if content elements are moved
Make the "player size" field optional (see #5451)
Support loading static JavaScripts in the `config.php` files (see #4890)