Check if install dir is empty

lug-helper.sh

@@ -2610,6 +2610,13 @@ install_game_wine() {
         fi
     fi
 
+    if [ "$(ls -A "$install_dir")" ]; then
+        # The directory is not empty, ask the user if they want to continue
+        if ! message options "Cancel" "Continue" "The install directory is not empty!\n\nRe-using an existing wine prefix may result in unexpected behavior!\n\n$install_dir"; then
+            return 1
+        fi
+    fi
+
     # Create the game path
     mkdir -p "$install_dir"