May remove the "Add a YABs" button on servers page

[kerm-me]

Since yabs/create return 404 now, It is a little confusing.

[cp6]

Thanks, good find!

[kerm-me]

There is another add a YABs link on individual server page. If possible, I perfer to pop-up a modal when click it, just like:

run this script on your server to add a yabs
`curl -sL yabs.sh | bash -s -- -s "URL/api/yabs/SERVERID/APIKEY"`

with the URL、SERVERID、APIKEY are autoreplaced by the custom information.

[cp6]

https://github.com/cp6/my-idlers/commit/17b7733258bfb10098418bde9daff1f189276e66

and

https://github.com/cp6/my-idlers/commit/a56424bcaf6d70f4c16112fdc7bd207a3577a4a6