feat: convert screenshot scripts to wayland

pkgs/scripts/screenshot-screen.nix

@@ -1,24 +1,23 @@
 {
-  lib,
   writeShellApplication,
-  flameshot,
+  grimblast,
   libnotify,
-  moreutils,
 }:
 writeShellApplication {
   name = "screenshot-screen";
+  runtimeInputs = [
+    grimblast
+    libnotify
+  ];
   text = ''
-    set -euo pipefail
     umask 077
 
     date=$(date +"%Y-%m-%dT%H:%M:%S%:z")
     out="''${XDG_PICTURES_DIR-$HOME/Pictures}/screenshots/$date-fullscreen.png"
     mkdir -p "$(dirname "$out")"
 
-    if ${lib.getExe flameshot} full --raw 2>&1 1> >(${moreutils}/bin/sponge "$out") | grep -q "flameshot: info:.*aborted."; then
-      exit 1
-    fi
-    ${libnotify}/bin/notify-send \
+    grimblast --freeze save screen "$out" || exit 2
+    notify-send \
       "📷 Screenshot captured" "💾 Saved to $out" \
       --hint="string:wired-tag:screenshot-$date" \
       || true