* 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()
* Fix 'Mask' node missing Properties widget; fix crash with 'Brightness/Contrast Classic' node
Also clean up dead code and improve tooltip for the "-" Properties panel widget fallback.
* format type
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Co-authored-by: Adam <adamgerhant@gmail.com>