`new-repo-disable-projects-and-wikis` - Misaligned on new UI

[fregante]

Description

Lower priority since it's there, just misaligned. The feature can now be properly integrated in the form.

Since it's so different, it's best to create a dedicated observe and "add" functions so that we can just drop the old version at a later point.

How to replicate the issue + URL

https://github.com/new?use_v2_form=true

Extension version

all

Browser(s) used

Safari

Token ⚠️

• I set a token in the options page. I understand that some features require a token to work.