MRBS 1.12.2 等保2.0二级整改完整提交

包含：登录失败锁定、90天密码有效期、30分钟会话超时、
强制改密、登录审计日志、屏幕水印、企业背景图、
备案信息固定底部、favicon、登录页JS修复等全部改动

.github/ISSUE_TEMPLATE/support-request.md

@@ -0,0 +1,26 @@
+---
+name: Support request
+about: To raise support requests.
+title: ''
+labels: support request
+assignees: ''
+
+---
+
+**Describe the problem you're facing/question you have**
+A clear and concise description of the problem you're facing, or the question you have.
+
+**Browser details (please complete the following information):**
+ - OS: [e.g. iOS]
+ - Browser [e.g. chrome, safari]
+ - Version [e.g. 22]
+
+**Server details (please complete the following information):**
+ - MRBS version [e.g. 1.9.4]
+ - Web server: [e.g. Apache 2.4.48]
+ - OS: [e.g. CentOS 7.9]
+ - PHP version: [e.g. 7.4.23]
+ - Database used: [e.g. MySQL 8.0.26]
+
+**Additional context**
+Add any other context or screenshots about the feature request here.