Label fix (#411)

* Cleanup label printing options

- Improve calls to setState()
- Should fix potential race conditions

* Use name if description not available

* Code simplification

* Fetch plugins even if the server reports "plugins enabled"

- Builtin plugins are still a thing!

* Use name *and* description to display label

lib/api.dart

@@ -645,11 +645,7 @@ class InvenTreeAPI {
   // Request plugin information from the server
   Future<bool> getPluginInformation() async {
 
-    // The server does not support plugins, or they are not enabled
-    if (!pluginsEnabled()) {
-      _plugins.clear();
-      return true;
-    }
+    _plugins.clear();
 
     debug("API: getPluginInformation()");