Modal: add `dimmer` shorthand

[edvardsk]

Feature Request

Modal portal class name option or any other possibility to style modals container.

Problem description

Right now there is no possibility to style default .modals portal via modal component. It is a big limitation, that reduce flexibility of the modal usage. The only one way to do it right now - it is overriding mountNode. But it is unnecessary and redundant in most cases.

Proposed solution

It will be great to have some prop in modal component, that will give possibility to add class to parent portal, something like portalClassName.

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[layershifter]

In fact, this can be done with #1739. However, there wasn't many activity. Will be easier to implement after #2880 will be merged.

[stale]

There has been no activity in this thread for 180 days. While we care about every issue and we’d love to see this fixed, the core team’s time is limited so we have to focus our attention on the issues that are most pressing. Therefore, we will likely not be able to get to this one.

However, PRs for this issue will of course be accepted and welcome!

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[stale]

This issue will be closed due to lack of activity for 12 months. If you’d like this to be reopened, just leave a comment; we do monitor them!