feat: hide group assistant banner

[Rovniced]

标题 / Title Here

描述 / Description

新增功能：隐藏群助手顶部的 收进群助手且不提醒 的banner （已测试兼容qq nt和tim nt）
修改：让联系人页面精简在tim nt上生效

修复或解决的问题 / Issues Fixed or Closed by This PR

检查列表 / Check List

• 我已经在预期的 QQ 或 TIM 版本上测试了这些更改，并确认它们能够正常工作，不会破坏任何东西（尽我所能）。
  I have tested these changes on the expected version and confirmed that they work and don't break anything (as well as I can manage).
• 我的改动不会导致本模块丢失对旧版 QQ 或 TIM 的支持。
  My changes will not cause this module to lose support for older versions of QQ or TIM。
• 我已经合并了对后续工作无意义的提交，并确认它们不会对后续维护造成破坏。（必须）
  I have merged commits that are meaningless for follow-up work and confirmed that they will not cause damage to follow-up maintenance. (Required)