adding missing loading state when confirming password reset

- adds reset test cases to the onboarding view model

vector/src/test/java/im/vector/app/test/fakes/FakeAuthenticationService.kt

@@ -41,6 +41,10 @@ class FakeAuthenticationService : AuthenticationService by mockk() {
         every { getLoginWizard() } returns loginWizard
     }
 
+    fun givenLoginWizard(loginWizard: LoginWizard) {
+        every { getLoginWizard() } returns loginWizard
+    }
+
     fun givenLoginFlow(config: HomeServerConnectionConfig, result: LoginFlowResult) {
         coEvery { getLoginFlow(config) } returns result
     }