Some more contributions to Graphite

I have recently made several improvements to Graphite, a vector (drawing with shapes instead of pixels) editor written in rust and available at editor.graphite.design/
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Features

• Add font menu previews and virtual scrolling #650 - Expanding on some previous work to add a font dropdown, this allows users to see the name of the font in the font so they can see what the font looks like without clicking to select it
• Add the File > Export dialog and PNG/JPG downloading #629 - Allows the svg to be exported to a bitmap file by displaying it onto a canvas.
• https://github.com/GraphiteEditor/Graphite/pull/720 - JPEG exports have a white background and embedded bitmap images no longer use deprecated xlink:href attribute.
• Snapping system improvements and refactor #621 -  Add snapping to points of a shape as well as the existing snapping to bounding boxes
• Improvements to the layer transform cage UX #589 -  Right click to abort whilst still dragging - required changes to the input system. Also aspect ratio is preserved at the start of a drag.
• Migrate dialogs to Rust and add a New File dialog #623 - Generating the dialogs in rust code reduces the number different places needed to add a new dialog. The new file dialog allows users to choose a document size and a file name using this new system.
• Draw the outlines of shapes on hover and selection #609 - This allows users to more easily see which layer they are about to select based on user feedback

Debugging tools

• Improve message ordering to use a stack #707  -  The message ordering now uses a tree like structure
• Log message tree #728 - use ASCII art to improve debuggability of previous code change (as shown below)
• Prevent subsequent panics for already borrowed editor #689 - When part of the editor panicked (crashed) it would then cause other panics leading to people becoming confused over the source of the crash.

Bug fixes

• Fix desynced UI #727 - The radiobuttons where not being triggered properly thanks to the new message sequencing
• Fix IndexedDb in Firefox private browsing mode #721 - IndexDb which mfish is using for autosaving documents is not available in firefox private browsing mode and so was causing the editor to crash. This stops the crash and adds a dialog box warning users that their work will not be autosaved
• Fix path overlays and pen tool click #720 - The path overlays were not being updated on selection change
• Fix ctrl enter to commit text #675 - The ctrl enter shortcut was being sent to the textbox instead of to the text tool meaning that the shortcut no longer worked (thanks to Keavon for spotting this)
• Fix hover outline #673 - The outline when hovering over a shape did not update when the document was moved and only when the mouse was moved
• Restore the zoom to fit behaviour #641 - When zooming on an empty document a division by zero occurred
• Keyboard menu/widget navigation #628 - Users can more easily tab through different menus as well as using the up and down arrows to use dropdown menus.