[AuthView] 密码预览

## 登录/注册表单的密码预览
[LoginForm](https://github.com/Green-Hair/chat/blob/feature-1.0.0/src/components/LoginForm.vue)
[RegisterForm](https://github.com/Green-Hair/chat/blob/feature-1.0.0/src/components/RegisterForm.vue)

允许使用[iconPark](https://iconpark.oceanengine.com/official)作为图标库