translate: Fix translate bug fix
translate: Fix translate bug fix

 - Change length limit 4800 to 4500
 - Fix merge chunk logical error

yona-projects/yona,doortts/fork-yobi,yona-projects/yona,doortts/fork-yobi,doortts/fork-yobi,yona-projects/yona,yona-projects/yona,doortts/fork-yobi