Ensure a Callback and only one is provided in the Plugin. Also reduce boilerplate code in Nodes.

libraries/push/impl/src/main/kotlin/io/element/android/libraries/push/impl/troubleshoot/IgnoredUsersTest.kt

@@ -62,7 +62,7 @@ class IgnoredUsersTest(
         coroutineScope: CoroutineScope,
         navigator: NotificationTroubleshootNavigator,
     ) {
-        navigator.openIgnoredUsers()
+        navigator.navigateToBlockedUsers()
     }
 
     override suspend fun reset() = delegate.reset()

libraries/push/impl/src/test/kotlin/io/element/android/libraries/push/impl/troubleshoot/IgnoredUsersTestTest.kt

@@ -39,7 +39,7 @@ class IgnoredUsersTestTest {
         )
         val openIgnoredUsersResult = lambdaRecorder<Unit> {}
         val navigator = object : NotificationTroubleshootNavigator {
-            override fun openIgnoredUsers() = openIgnoredUsersResult()
+            override fun navigateToBlockedUsers() = openIgnoredUsersResult()
         }
         sut.quickFix(
             coroutineScope = backgroundScope,