Update resources

Update connectors.json to match v3.18.0 version.

Author: github-actions[bot]

resources/connectors.json

@@ -30,6 +30,7 @@
   "Douban.FM",
   "Focus@Will",
   "Subphonic (owncloud plugin)",
+  "Nextcloud music",
   "Digitally Imported",
   "BBC Sounds",
   "Gaana",
@@ -407,5 +408,8 @@
   "gravity.fm",
   "Archaic Horizon",
   "Aonsoku",
-  "CREAMER NATION"
+  "CREAMER NATION",
+  "Feishin",
+  "Monochrome",
+  "XRaydio"
 ]