* Fix two-axis scrollbars in scrollable regions on Firefox
* Move Document Mode dropdown to the backend; and related code cleanup
* Port the Layer Tree options bar layout to the backend
* Port the tool shelf to the backend
* Clean up initialization and wasm wrapper
* Fix crash
* Fix missing document bar
* Remove unused functions in api.rs
* Code review
* Tool initalisation
* Remove some frontend functions
* Initalise -> Init so en-US/GB doesn't have to matter :)
* Remove blend_mode and opacity from LayerPanelEntry
Co-authored-by: 0hypercube <0hypercube@gmail.com>
Keavon Chambers