Ryan Wang 6c5c68bd7b feat: add exception pages (#22) ...

新增 404 和 500 的异常模板。适配：https://github.com/halo-dev/halo/pull/2925

<img width="1920" alt="image" src="https://user-images.githubusercontent.com/21301288/207247014-81717c6c-7eae-4819-a940-979df46c56cf.png">
<img width="1920" alt="image" src="https://user-images.githubusercontent.com/21301288/207247066-b5684013-f893-4576-bc5c-bc25c0ce914a.png">

/kind feature

```release-note
None
```

2022-12-14 15:18:18 +00:00

..

error.html

feat: add exception pages (#22)

2022-12-14 15:18:18 +00:00