fix(compress_unreal_maps): correct array usage in file compression loop

* Updated the loop to iterate over the `exts` array correctly using `"${exts[@]}"` instead of `${exts}`.
* This change ensures proper handling of file extensions during the compression process.

Author: dgibbs64

lgsm/modules/compress_unreal_maps.sh

@@ -55,7 +55,7 @@ done
 cd "${systemdir}" || exit
 
 # Find and compress files, then move .uz2 to compressedmapsdir
-for ext in ${exts}; do
+for ext in "${exts[@]}"; do
 	# Collect all files with the current extension into an array
 	mapfile -t files < <(find "${serverfiles}" -name "*.${ext}" -type f)
 	for file in "${files[@]}"; do