Shotcut 22.09.23

What's new in this version:

- Added limited support for reading WebP Animation
- Show audio-clips without album art as a checkboard for transparent instead of white
- Added the GPS Graphic video filter (see its presets)
- Added the gopro2gpx utility to let you export a GPX file from a GoPro video using Properties > menu > Export GPX. This saves the .gpx in the same folder as the video file with the same name but different exension
- Added Fisheye video filter (see its presets)
- Added snapping to the playhead to Keyframes

Added Help > Actions and Shortcuts:
- Provides a unified action search and shortcut editor
- Replaces the old Keyboard Shortcuts... item in the Help menu and takes its keyboard shortcut ?
- / is also a default shortcut, and either shortcut can be changed
- Searches both action name and shortcut
- Press Return/Enter within search to move focus to the list of actions
- Press Return/Enter on a selected action to trigger it and close the dialog
- Shift, Ctrl, or Alt + Return/Enter on a selected action to trigger it and NOT close the dialog
- Double-click an action to trigger it but NOT close the dialog
- The dialog is not modal so you can leave it open and to the side while working
- Press Esc when the dialog has focus to close it
- Press F2 when an action is selected to edit its first shortcut
- Single-click a selected shortcut to enter edit mouse using the mouse. This means you typically need two single clicks: one to select, the second to enter into edit mode
- You can Tab out of edit mode to navigate focus to the apply button and press Space to trigger the apply. It is intentional that you cannot assign Tab as a keyboard shortcut to an action
- There are some keyboard buttons such as J/K/L that are reserved and cannot be used in a shortcut. You will see an error message when you try to apply it
- You can define up to 2 shortcuts per action! You may want to leave the default as well as add your preferred shortcut

A big portion of the UI had to be rewritten to support this. As a result:
- All panel (hamburger) menus are consistently on the left/first
- Panel-specific Options sub-menus were moved to Settings main menu
- The keyboard shortcut to switch the player between Source and Project is now P
- Various hidden or under-exposed actions now have a menu item somewhere including a new Player main menu
- Many translations will be lost
- The default shortcuts to change the current track now require Ctrl+Alt in addition to cursor up and down

Improved support for custom video transitions:
- There is a folder now in the App Data Directory named transitions where you can store these
- All files in the transitions folder are listed in transition Properties, the Mask: From File video filter, and the Slideshow Generator dialog
- Added a favorite button in transition Properties and Mask: From File that copies your chosen custom file to the transitions folder
- Added a quick preview to transition properties

- Added the ability to drag-scroll/pan using the middle mouse button (press mouse wheel) to Timeline, Keyframes, and the player when zoomed in

Improved the Filters picker:
- Added translatable keywords to facilitate search. For example, "transform" includes Size, Position & Rotate
- Added the English filter name in an untranslatable manner to the keywords so people using a translation can more more easily find things based on proliferic English advice
- Added support for a small animated icon

- Added the alpha Operation, Reverse, and Invert parameters to the Mask: Draw video filter
- Added Settings > Reset... to reset all settings including hidden ones

Fixed:
- Move Track Up or Move Track Down breaks the order of blending/compositing
- opening files with a % in their path or name
- sometimes a date does not appear in Playlist
- Old Film: Scratches video filter not working (broke in version 22.04)
- Stabilize video filter uses invalid analysis data after pasted
- File > Open MLT XML as Clip... changes the current Video Mode
- audio artifacts introduced after splitting a clip that has been converted or reversed using the better/large/DNxHR option
- Text: Rich filter's toolbar may not reflect the current text color

Upgraded:
- FFmpeg to v5.1.0
- dav1d AV1 decoder v1.0
- AOM AV1 encoder to v3.4.0
- libvpx VP8/9 encoder to v1.12.0
- VMAF to v2.3.1
- Glaxnimate to v0.5.1