allow to directly close self-closing tags

[jxsl13]

I would like to be able to automatically close self-closing tags.

When writing <img| (img is in the list of self closing tags, | is the current position of my cursor), then I would love if the self closing tag was directly added to the right of my cursor <img| /> (depending on whether the additional space option was set to true, either /> or /> should be added.

In order to make this more robust, it might make sense to automatically close the tag after an additional whitespace was added after the img, like this <img |/> or this <img | />