Sidebar renders badly when JS is disabled

### Problem

As you can see:

![Image](https://github.com/user-attachments/assets/0e69bad2-80b4-4a54-8d7c-1aeb8f23f14d)

It should take the whole height but doesn't.

### Steps

Go to any page and disable javascript.

### Possible Solution(s)

Just a small CSS fix.

### Notes

_No response_

### Version

```text
v0.4.43
```