Update navigation.yml

_data/navigation.yml

@@ -4,7 +4,7 @@ main:
   - title: "Blog"
     url: https://blog.funkwhale.audio/local
   - title: "Forums"
-    url: https://socialhub.network/c/projects/funkwhale
+    url: https://socialhub.network/c/funkwhale
   - title: "Source"
     url: https://code.eliotberriot.com/funkwhale/funkwhale
   - title: "Documentation"