modified application config, added edit-apps alias

apps.nix

@@ -18,6 +18,16 @@
     ntfs3g
     corectrl
     git
+    mangohud
+    gamescope
+    bottles
+    anydesk
+    piper
   ];
+
   programs.steam.enable = true;
+
+  environment.shellAliases = {
+    edit-apps = "nvim /etc/nixos/apps.nix";
+  };
 }