[PM-8847] Delay browser local storage operations during reseed (#9536)

* Define matchers to test promise fulfillment

These are useful for validating that promises depend on other events prior to fulfilling.

* Expose custom matchers to jest projects

Team-specific projects are not touched here to try and reduce review burden.

* Block browser local operations awaiting reseed

This should closes a narrow race condition resulting from storage operations during a reseed event.

* Import from barrel file

This might fix the failing test, but I'm not sure _why_

* Document helper methods

* Validate as few properties as possible per test

* Simplify expected value representation

* Allow waiting in promise matchers

* Specify resolution times in promise orchestration tests.

* Test behavior triggering multiple reseeds.

* Fix typo

* Avoid testing implementation details

* Clear reseed on startup

in case a previous process was aborted in the middle of a reseed.

* Correct formatting

apps/browser/test.setup.ts

@@ -1,4 +1,7 @@
 import "jest-preset-angular/setup-jest";
+import { addCustomMatchers } from "@bitwarden/common/spec";
+
+addCustomMatchers();
 
 // Add chrome storage api
 const QUOTA_BYTES = 10;
@@ -10,6 +13,10 @@ const storage = {
     QUOTA_BYTES,
     getBytesInUse: jest.fn(),
     clear: jest.fn(),
+    onChanged: {
+      addListener: jest.fn(),
+      removeListener: jest.fn(),
+    },
   },
   session: {
     set: jest.fn(),