added easyeffects

this is an application that adds effects to pipewire applications

systems/common/default.nix

@@ -39,6 +39,10 @@
     yt-dlp.enable = true;
   };
 
+  services = {
+    easyeffects.enable = true;
+  };
+
   xdg.mimeApps = {
     enable = true;