Develop

[ShaneIsrael]

This pull request introduces a dedicated TROUBLESHOOTING.md guide and improves the admin Bulk File Manager's usability, especially on mobile devices. The main changes are the extraction and expansion of troubleshooting documentation and a responsive redesign of the file manager's bulk action toolbar.

Documentation improvements:

• Moved all troubleshooting content from README.md into a new, comprehensive TROUBLESHOOTING.md file, covering playback, upload, permissions, login, transcoding, LDAP, and more. The README.md now references this guide for troubleshooting. [1] [2]

Admin UI enhancements (Bulk File Manager):

• Made the bulk action toolbar responsive: on mobile screens, it now shows compact icon-only buttons with tooltips, while on desktop it retains labeled buttons. This improves usability on small devices.
• Added useTheme and useMediaQuery hooks to detect screen size and conditionally render toolbar layouts. [1] [2]
• Updated button and divider styles for consistency and clarity in both mobile and desktop layouts. [1] [2] [3] [4]
• Improved loading state handling to prevent UI glitches if files are already loaded.
• Refactored imports to include new style helpers for better maintainability.