Fix LoginForm test to use window.location.href for query params

While window.history.replaceState should work with vitest-location-mock, it
doesn't actually update window.location in practice. Setting window.location.href
directly does work and properly updates window.location.search for the component
to read during setup.

Author: dannon

client/src/components/Login/LoginForm.test.ts

@@ -158,16 +158,17 @@ describe("LoginForm", () => {
     });
 
     it("renders message from query params", async () => {
-        const originalUrl = window.location.href;
-        window.history.replaceState(null, "", "/login/start?message=auth-error&status=info");
+        const originalHref = window.location.href;
+        window.location.href = `${window.location.origin}/login/start?message=auth-error&status=info`;
 
         const wrapper = await mountLoginForm();
+        await flushPromises();
 
         const alert = wrapper.find(".alert");
         expect(alert.exists()).toBe(true);
         expect(alert.text()).toContain("auth-error");
         expect(alert.classes()).toContain("alert-info");
 
-        window.history.replaceState(null, "", originalUrl);
+        window.location.href = originalHref;
     });
 });