Feature: #108796 - Centralize Bookmark Management 

Bookmark Groups 

Bookmarks can be organized into three types of groups.

System groups are defined via UserTSconfig using options.bookmarkGroups and are available to all users. Global groups contain bookmarks visible to all backend users, though only administrators can add bookmarks to these groups. User groups are custom groups created by individual users for personal organization, stored in a new database table sys_be_shortcuts_group.

Five default bookmark groups are provided out of the box: Pages, Records, Files, Tools, and Miscellaneous. Previously these groups were hardcoded in PHP, but they are now defined via UserTSconfig in EXT:backend, making them fully customizable. The functionality remains the same, but administrators now have complete control over which groups are available.

The options.bookmarkGroups setting should only be modified on a global scope and not on a per-user basis, as inconsistent group configurations between users can lead to unexpected behavior:

# Remove a specific default group (e.g., Files)
options.bookmarkGroups.3 >

# Remove all default groups
options.bookmarkGroups >

# Add a custom group with a static label
options.bookmarkGroups.10 = My Custom Group

# Add a custom group with a translatable label using domain syntax
options.bookmarkGroups.11 = my_extension.messages:bookmark_group.custom

# Disable bookmarks entirely
options.enableBookmarks = 0

Group labels support the TYPO3 translation domain syntax, allowing extensions to provide translated group names. The format is extension_key.messages:translation_key, which resolves to the default language file at EXT:extension_key/Resources/Private/Language/locallang.xlf.

As before, group ID -100 has special behavior as a superglobal group. Bookmarks assigned to this group are visible to all backend users, but only administrators can add or modify bookmarks in this group. This allows administrators to provide a shared set of bookmarks across the entire TYPO3 installation.

Bookmark Manager 

A new modal-based Bookmark Manager provides a centralized interface for managing all bookmarks. The manager supports drag and drop reordering to reorganize bookmarks within and across groups. Bulk operations allow selecting multiple bookmarks to move or delete at once. Users can create, edit, and delete custom bookmark groups through the group management interface, and rename bookmarks directly through inline editing.

The Bookmark Manager can be accessed via the bookmark icon in the toolbar dropdown menu.