chore(web, version): 更新版本至v1.5.9，清理web文件的多余前置空格

ticketmachine.lua

@@ -1,6 +1,6 @@
 local CURRENT_STATION_CODE = 'Ticket-Machine'
 local API_BASE = 'http://ticket.fse-media.group/api'
-local VERSION = 'v1.5.8'
+local VERSION = 'v1.5.9'
 
 -- ###########################
 -- Core HTTP & JSON Utilities

web/ticket-order.html

@@ -1,4 +1,4 @@
-<!doctype html>
+<!doctype html>
 <html lang="zh-CN">
 
 <head>

web/ticket-order.js

@@ -1,4 +1,4 @@
-(() => {
+(() => {
   const $ = (sel) => document.querySelector(sel);
   const fromEl = $('#from');
   const toEl = $('#to');