Too wide spacing between font size input area and `Show advanced` on `Appearance` user settings tab

[luixxiul]

Steps to reproduce

1. Open Appearance user settings tab
2. Check spacing between font size input area and Show advanced

Outcome

What did you expect?

It should seem natural.

What happened instead?

It seems too wide, compared with the narrow gap between Use custom size label and the input area:

Operating system

No response

Browser information

No response

URL for webapp

develop.element.io

Application version

No response

Homeserver

No response

Will you send logs?

No