tdesktop: add patch to disable custom URL scheme registration

The generated .desktop files contains references to unwrapped tdesktop,
breaking scheme handling. And the scheme handler is already registered
in the packaged .desktop file, rendering this unnessesary

Reference: https://github.com/NixOS/nixpkgs/issues/218370

pkgs/applications/networking/instant-messengers/telegram/tdesktop/default.nix

@@ -1,5 +1,6 @@
 { lib
 , fetchFromGitHub
+, fetchpatch
 , callPackage
 , pkg-config
 , cmake
@@ -87,6 +88,16 @@ env.mkDerivation rec {
     sha256 = "0c65ry82ffmh1qzc2lnsyjs78r9jllv62p9vglpz0ikg86zf36sk";
   };
 
+  patches = [
+    # the generated .desktop files contains references to unwrapped tdesktop, breaking scheme handling
+    # and the scheme handler is already registered in the packaged .desktop file, rendering this unnecessary
+    # see https://github.com/NixOS/nixpkgs/issues/218370
+    (fetchpatch {
+      url = "https://salsa.debian.org/debian/telegram-desktop/-/raw/09b363ed5a4fcd8ecc3282b9bfede5fbb83f97ef/debian/patches/Disable-register-custom-scheme.patch";
+      hash = "sha256-B8X5lnSpwwdp1HlvyXJWQPybEN+plOwimdV5gW6aY2Y=";
+    })
+  ];
+
   postPatch = ''
     substituteInPlace Telegram/ThirdParty/libtgvoip/os/linux/AudioInputALSA.cpp \
       --replace '"libasound.so.2"' '"${alsa-lib}/lib/libasound.so.2"'