fix: decouple actionFinalize and actionErase (#4984)

* Update actionCanvas.tsx

* Update actionFinalize.tsx

* lint

* remove Escape trigger from actionErase

* revert to lastActiveTool only if coming from eraser tool

* unrelated: fix restoring `appState.activeTool`

* one more restoring fix

* fix tests

Co-authored-by: dwelle <luzar.david@gmail.com>

src/tests/data/restore.test.ts

@@ -310,7 +310,9 @@ describe("restoreAppState", () => {
       stubImportedAppState,
       stubLocalAppState,
     );
-    expect(restoredAppState.activeTool).toBe(stubImportedAppState.activeTool);
+    expect(restoredAppState.activeTool).toEqual(
+      stubImportedAppState.activeTool,
+    );
     expect(restoredAppState.cursorButton).toBe(
       stubImportedAppState.cursorButton,
     );