fix(backup): resolve issues with lockfile check and creation (#3214)

* check lockfile has been fixed
* lockfile is only created once compression starts

lgsm/functions/command_backup.sh

@@ -254,12 +254,12 @@ fn_backup_start_server(){
 }
 
 # Run functions.
-fn_backup_create_lockfile
+fn_backup_check_lockfile
 fn_backup_init
 fn_backup_stop_server
 fn_backup_dir
 fn_backup_migrate_olddir
-fn_backup_check_lockfile
+fn_backup_create_lockfile
 fn_backup_compression
 fn_backup_prune
 fn_backup_start_server