* Replace the title attribute with custom FloatingMenu tooltips
* Separate tooltip labels and descriptions into two styled blocks
* Move keyboard shortcut tooltips to a separate section at the bottom
* Update shortcut key styling in tooltips and hints bar
* Fix .to_string()
- Add the 'Reset Transform' and 'Replace Transform' nodes
- Add the 'Count Points' and 'Index Points' nodes
- Make the 'Index Elements' node support negative indexing from the end
- Make the 'Flatten Vector' node's implementation reusable
- Fix crash displaying 0x0 raster image in the Data panel
- Fix the 'Points to Polyline' node not working on two-point objects
