MELS: either expanded or summary, not both

[lukebarnard1]

Fixes element-hq/element-web#3097

[lukebarnard1]

With the referenced SCSS, this looks like:

when collapsed and

when expanded.

[ara4n]

so, the point of #3097 was both to avoid showing the duplicate MEL info between the summary & the expanded form... and to avoid wasting vertical space. Would it be possible to keep it simpler and just put the 'collapse' link at the end of the first line when expanded (e.g. @135542:matrix.org joined the room in your screenshot example)?

[ara4n]

(aesthetically i quite like your proposal, but it does waste vertical space, and i'm not sure we need yet another visual idiom involved - especially as the HR looks a bit like a section break or similar)

[lukebarnard1]

Would it be possible to keep it simpler and just put the 'collapse' link at the end of the first line when expanded

This would be obscured by read receipts, hence it being above instead.