[PM-9442] Add tests for undefined state values and proper emulation of ElectronStorageService in tests (#9910)

* fix: handle undefined value in migration 66

* fix: the if-statement was typo

* feat: duplicate error behavior in fake storage service

* feat: fix all migrations that were setting undefined values

* feat: add test for disabled fingrint in migration 66

* fix: default single user state saving undefined value to state

* revert: awaiting floating promise

gonna fix this in a separate PR

* Revert "feat: fix all migrations that were setting undefined values"

This reverts commit 034713256c.

* feat: automatically convert save to remove

* Revert "fix: default single user state saving undefined value to state"

This reverts commit 6c36da6ba5.

apps/desktop/src/platform/services/electron-storage.service.ts

@@ -82,9 +82,14 @@ export class ElectronStorageService implements AbstractStorageService {
   }
 
   save(key: string, obj: unknown): Promise<void> {
+    if (obj === undefined) {
+      return this.remove(key);
+    }
+
     if (obj instanceof Set) {
       obj = Array.from(obj);
     }
+
     this.store.set(key, obj);
     this.updatesSubject.next({ key, updateType: "save" });
     return Promise.resolve();