Don't load instance info in background

This information is very useful and it's loaded very quickly anyways

mastodon/src/main/java/org/joinmastodon/android/api/session/AccountSessionManager.java

@@ -99,7 +99,7 @@ public class AccountSessionManager{
 			Log.e(TAG, "Error loading accounts", x);
 		}
 		lastActiveAccountID=prefs.getString("lastActiveAccount", null);
-		MastodonAPIController.runInBackground(()->readInstanceInfo(domains));
+		readInstanceInfo(domains);
 		maybeUpdateShortcuts();
 	}