chore: isolated frontend/unit tests

Author: HardMax71

frontend/vitest.config.ts

@@ -13,7 +13,7 @@ export default defineConfig({
     pool: 'threads',
     maxWorkers: 8,
     minWorkers: 2,
-    isolate: false,
+    isolate: true,
     css: false,
     testTimeout: 10_000,
     environment: 'jsdom',

frontend/vitest.setup.ts

@@ -98,7 +98,7 @@ Element.prototype.animate = vi.fn().mockImplementation(() => {
   return mock as unknown as Animation;
 });
 
-// Reset storage and DOM between every test (required for isolate: false)
+// Reset storage and DOM between every test
 beforeEach(() => {
   Object.keys(localStorageStore).forEach(key => delete localStorageStore[key]);
   Object.keys(sessionStorageStore).forEach(key => delete sessionStorageStore[key]);