feat: Add Eraser 🎉 (#4887)

* feat: Add Eraser 🎉

* Eraser working

* remove unused state

* fix

* toggle eraser

* Support deselect with Alt/Option

* rename actionDelete -> actionErase

* Add util isEraserActive

* show eraser in mobile

* render eraser conditionally in mobile

* use selection if eraser in local storage state

* Add sampling to erase accurately

* use pointerDownState

* set eraser to false in AllowedExcalidrawElementTypes

* rename/reword fixes

* don't use updateScene

* handle bound text when erasing

* fix hover state in mobile

* consider all hitElements instead of a single

* code improvements

* revert to select if eraser active and elements selected

* show eraser in zenmode

* erase element when clicked on element while eraser active

* set groupIds to empty when eraser active

* fix test

* remove dragged distance

src/data/restore.ts

@@ -31,8 +31,8 @@ type RestoredAppState = Omit<
 >;
 
 export const AllowedExcalidrawElementTypes: Record<
-  ExcalidrawElement["type"],
-  true
+  AppState["elementType"],
+  boolean
 > = {
   selection: true,
   text: true,
@@ -43,6 +43,7 @@ export const AllowedExcalidrawElementTypes: Record<
   image: true,
   arrow: true,
   freedraw: true,
+  eraser: false,
 };
 
 export type RestoredDataState = {