Disable Last.FM features based on LastFM.Enabled config option

ui/src/config.js

@@ -19,7 +19,7 @@ const defaultConfig = {
   defaultTheme: 'Dark',
   enableUserEditing: true,
   devEnableShare: true,
-  devEnableScrobble: true,
+  lastFMEnabled: true,
   lastFMApiKey: '9b94a5515ea66b2da3ec03c12300327e',
   enableCoverAnimation: true,
 }

ui/src/personal/Personal.js

@@ -24,7 +24,7 @@ const Personal = () => {
         <SelectLanguage />
         <SelectDefaultView />
         <NotificationsToggle />
-        {config.devEnableScrobble && <LastfmScrobbleToggle />}
+        {config.lastFMEnabled && <LastfmScrobbleToggle />}
       </SimpleForm>
     </Card>
   )

ui/src/player/PlayerEdit.js

@@ -48,7 +48,7 @@ const PlayerEdit = (props) => (
         ]}
       />
       <BooleanInput source="reportRealPath" fullWidth />
-      {config.devEnableScrobble && (
+      {config.lastFMEnabled && (
         <BooleanInput source="scrobbleEnabled" fullWidth />
       )}
       <TextField source="client" />