add shell command to fix nix when it gets in a tizz; add nix-index so fish no longer throws a wobbly when you call a commaand that doesnt exist; remove shell format since bash ide can now use it; add packages for gamescope to steam

configuration/modules/gaming.nix

@@ -11,6 +11,20 @@
     gamescopeSession.enable = true;
     protontricks.enable = true;
     extraCompatPackages = [ pkgs.proton-ge-bin ];
+    package = pkgs.steam.override {
+      extraPkgs = pkgs': with pkgs'; [
+        xorg.libXcursor
+        xorg.libXi
+        xorg.libXinerama
+        xorg.libXScrnSaver
+        libpng
+        libpulseaudio
+        libvorbis
+        stdenv.cc.cc.lib # Provides libstdc++.so.6
+        libkrb5
+        keyutils
+      ];
+    };
   };
   programs.gamemode.enable = true;
   programs.gamescope.enable = true;