Fix launch workspace script

home/hyprland/default.nix

@@ -30,15 +30,17 @@ let
 
     launch_terminal = pkgs.writeShellScriptBin "launch_terminal" ''
         function find_leaf_pid(){
-            local PID=$1
-            local CHILD_PID=$(pgrep -P "$PID")
-            if [ "$CHILD_PID" != "" ]; then
-                local RET=$(find_leaf_pid "$CHILD_PID")
+            local PID
+            local RET
+            local NAME
+            PID=$1
+            for CHILD_PID in $(pgrep -P "$PID"); do
+                RET=$(find_leaf_pid "$CHILD_PID")
                 if [ "$RET" != "" ]; then
-                    PID=$RET
+                    PID="$RET"
                 fi
-            fi
-            local NAME=$(ps -p "$PID" -o comm=)
+            done
+            NAME=$(ps -p "$PID" -o comm=)
             if [ "$NAME" == "zsh" ]; then
                 echo "$PID"
             elif [ "$NAME" == "ssh" ]; then