Don't try to get fresh token if not authorized

app/src/main/java/org/tasks/auth/AuthorizationService.kt

@@ -64,11 +64,14 @@ class AuthorizationService @Inject constructor(
         }
     }
 
-    suspend fun getFreshToken(): String? = withContext(Dispatchers.IO) {
+    suspend fun getFreshToken(): String? {
+        val authState = authStateManager.current
+        if (!authState.isAuthorized) {
+            return null
+        }
+        return withContext(Dispatchers.IO) {
             suspendCoroutine { cont ->
-            authStateManager
+                authState.performActionWithFreshTokens(authorizationService) { _, idToken, exception ->
-                    .current
-                    .performActionWithFreshTokens(authorizationService) { _, idToken, exception ->
                     if (exception == null) {
                         cont.resumeWith(Result.success(idToken))
                     } else {
@@ -77,8 +80,5 @@ class AuthorizationService @Inject constructor(
                 }
             }
         }
-
-    fun signOut() {
-        authStateManager.signOut()
     }
 }