TagSpaces 4.2.1

What's new in this version:

New features:
- A viewer for EPUB files is re-integrated
- Tag collection is now part of the free version as suggested in #1598
- Added info about the number of files and folders at the bottom of the default perspective
- Added print/export functionality for the description of files and folders

Enhancements:
- Internal links link to files are opened now in full width
- Added entry size and last modified date time as title to the rows in the grid perspective
- Added show folder properties button in the default perspective' toolbar
- Maximal height of the file and folder description set to 400px, scrolling for the content is enabled
- Enabling the open in full-width button for folders
- The S3 endpoint URL is moved from the advanced to the simple location's settings
- The pause/resume playback global shortcut and tray option does not bring the app windows on top anymore
- Now ':' can be used in the file names e.g. by renaming
- The close fullscreen button was visually improved
- Select all now selects also folders
- The auto-hide controls in the media player is disabled
- Videos are now vertically centered in the media player
- Persisting opened folder tree in the location manager after switching back for another tab
- Speeding-up the loading of sub-folders in the location manager by removing the deep-level analysis
- Deactivated the folder change feature while loading folder content
- Improve the dark theme support in the md-editor
- Added shadow to file extension to increase readability
- Improved theming support for extensions
- Changed zoom-in shortcut for the desktop version to ctrl+shift+plus #1600

Fixed:
- broken folder sharing path
- potential issue with window.open functionality
- embedding local images in description markdown
- setting thumbnail for the parent folder
- issue with the tag group creation
- thumbnail rename issue
- print mode for the html and md editors