Revert "signal-desktop-from-src: 7.60.0 -> 7.61.0"

This reverts commit 7c0523f3e6.

upon launch, Signal says 7.61.0 has expired and does not let you message
anyone.

fuck signal i hate their bullshit. "bUt It'S sO mUch EaSIer tHAn
MAtrIx". bruh

pkgs/by-name/signal-desktop-from-src/package.nix

@@ -181,7 +181,7 @@ let
 in
 stdenv.mkDerivation (finalAttrs: {
   pname = "signal-desktop-from-src";
-  version = "7.61.0";
+  version = "7.60.0";
 
   src = fetchFromGitHub {
     owner = "signalapp";
@@ -189,12 +189,12 @@ stdenv.mkDerivation (finalAttrs: {
     leaveDotGit = true;  # signal calculates the release date via `git`
     rev = "v${finalAttrs.version}";
     # XXX: hash is unstable because of the git pack dir
-    hash = "sha256-nPsHzxgK/nami5s1511dMB44OkVrYOD+QvbUC065RWI=";
+    hash = "sha256-SjRYeJBs36dLxZdhioF8v9w1zOZkjBUnbM+W+/cg26Q=";
   };
 
   pnpmDeps = pnpm_10.fetchDeps {
     inherit (finalAttrs) pname version src patches;
-    hash = "sha256-ry7s9fbKx4e1LR8DlI2LIJY9GQrxmU7JQt+3apJGw/M=";
+    hash = "sha256-mVC7dOsBcBrOEuz7t4xMv1QX2ZgfA5EjnRYunZEx73E=";
   };
 
   patches = [