feat(tests): add comprehensive unit tests for various components including AboutPage, CallPage, and MessagesPage

tests/frontend/GlobalState.test.js

@@ -0,0 +1,13 @@
+import { describe, it, expect } from "vitest";
+import globalState from "@/js/GlobalState";
+
+describe("GlobalState.js", () => {
+    it("has initial values", () => {
+        expect(globalState.unreadConversationsCount).toBe(0);
+    });
+
+    it("can be updated", () => {
+        globalState.unreadConversationsCount = 5;
+        expect(globalState.unreadConversationsCount).toBe(5);
+    });
+});