Version 33 - add selectable wallpapers, random mode

[neffo]

Changes in this new release:

• Use safer thumbnail loader approach for Wayland (thumbnails disabled by default) Crashes on gnome-shell 3.38.1 on Wayland when "autostart-xwayland" setting enabled #82
• Feature request: switch between recent wallpapers [Feature Request] "I don't like this image: Skip!" #72 Feature request: go back to previous wallpaper #89 "next image" option #83 please add auto refresh setting #59
• Random mode for above recent wallpapers
• Windows-app style next & previous images button (plus random button)
• Fix size of these icons being inconsistent (with theme?)
• Bring back notifications Show a notification containing the title and the explanation of the image #50 - notify when new image is available
• Fix clipboard, partially Copying image to clipboard does not work in 3.38.1 #80
• Fix GDM blur configuration not being enabled on supported GNOME versions Gnome 3.36+ blurred lockscreen background #73
• Blur control seems to not be active when restoring from suspend
• Restore previous state on load, so menus and thumbnails are populated straight away
• Restoring state seems to sometimes not set a refresh timer
• Add buttons to open image folder, and to menu (handy as this is how image lists will be curated)
• Fix some inconsistencies with text and translations
• Create dashboard for translation completeness Help translate this extension into your language #14
• Add carousel for images (might bump this to later release)
• Refactor code to improve maintainability, readability and correctness
• Fix ES6 warnings (use of const and let, rather than var)
• Add a setting to reset to current image when a new image arrives (which should probably be the default behavior)
• Make prefs window scrollable (if required... it's not)
• GNOME 3.28 - fix preferences
• GNOME 3.28 - fix align in menu buttons
• GNOME 3.28 - double deallocation of background in logs (known 3.28 issue, can't fix: https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/501)
• Fix prefs for GNOME 40 filechooser
• Correctly handle change of image directory (move files and correct settings including desktop wallpaper location)
• Actually test before releasing :)