Apps-Management doesn't show missing dependencies

[georgehrke]

Nextcloud 12 on the left, Nextcloud 11 on the right

Nextcloud 12 only shows that you can't enable LDAP.
Nextcloud 11 gives you a reason why you can't enable LDAP.

I'd propose a tooltip on the enable button that shows missing dependencies

cc @nextcloud/designers

[jancborchardt]

I’d say it should be displayed directly, like the »New version available« message:

(Cause a tooltip is quite hidden.)
Actually the <div class="warning"> in the <div class="actions"> can be used for that.

@georgehrke can you open a pull request for it?