Version 3.39.0 - Windows build

Oops, left an entire release marked as draft edition.

• Add preview image to progress listing.
• Update Y and U random seeking behavior to use temporary subclips, highlight regions and use bisect algorithm.
• Update clip jumping to skip over missing files.
• Keep file preview widgets disabled when a new file is loaded.
• Always disable previews when loading more than 400 files.
• Update preview placeholders to use single image instance rather than a new instance for each clip.
• Add Ctrl+R shortcut to jump to a random file containing search string.
• Fix parameter updates for clips inside grids.
• Fix preview updates for clips inside grids.
• Fix endpoint clamping for timeline filter variables to use last timestamp not the last added.
• Add error handing for MPV state messages if MPV crashes and restarts.
• Add right click options for double length and halve length to sequence editor.
• Make dragging subclip endpoints in sequence editor 'sticky' click to grab, click to drop.
• Use outlier detection in sequence editor dynamic subclip duration
• Add Recent Projects file menu option.
• Add menu Icons.
• Update initial keyboard shortcut help image.
• Add auto-convert callback to acceptance of clips with Y shortcut.
• Add alternate listview mode fallback to file listing when adding multiple thumbnails would to be too slow.
• Add optional preview images at both ends of subclip on hover option generateRIDHoverPreviews:
  
• Add upper limit on frame preview cache.
• Accept and apply subclip properties on press of enter.
• Set subclips labels to generate filenames in the format filename+label
• Add frame previews to completed encodes.
• Add drag target to frame previews on completed encodes.
• Add M shortcut to previews on merge tab to toggle mute.
• Fix skipped version number in build.