overlay: Add osu-lazer with faster start patch

pkgs/default.nix

@@ -1,3 +1,5 @@
 self: super: {
   bwrap-helper = super.callPackage ./bwrap-helper { };
+
+  osu-lazer = super.callPackage ./osu-lazer { inherit (super) osu-lazer; };
 }

pkgs/osu-lazer/default.nix

@@ -0,0 +1,6 @@
+{ osu-lazer }:
+osu-lazer.overrideAttrs (o: o // {
+  patches = o.patches ++ [
+    ./disable-deployed-build.patch
+  ];
+})

pkgs/osu-lazer/disable-deployed-build.patch

@@ -0,0 +1,21 @@
+diff --git a/osu.Game/OsuGameBase.cs b/osu.Game/OsuGameBase.cs
+index b1269e9..efeefa6 100644
+--- a/osu.Game/OsuGameBase.cs
++++ b/osu.Game/OsuGameBase.cs
+@@ -109,15 +109,12 @@ public class OsuGameBase : Framework.Game, ICanAcceptFiles
+         /// </summary>
+         public string VersionHash { get; private set; }
+ 
+-        public bool IsDeployedBuild => AssemblyVersion.Major > 0;
++        public bool IsDeployedBuild => false;
+ 
+         public virtual string Version
+         {
+             get
+             {
+-                if (!IsDeployedBuild)
+-                    return @"local " + (DebugUtils.IsDebugBuild ? @"debug" : @"release");
+-
+                 var version = AssemblyVersion;
+                 return $@"{version.Major}.{version.Minor}.{version.Build}";
+             }