Write / shepherd MSC3981

[Johennes]

This is to track work on matrix-org/matrix-spec-proposals#3981.

[t3chguy]

@Johennes this seems the wrong repo? Or the wrong title?

[Johennes]

The title is correct. What would be a better repo for tracking this? We need a separate issue to add this to a board view using the tracked-by filter because that sadly doesn't appear to work for PRs.

[t3chguy]

internal-planning? Writing an MSC is unrelated to the element-web project - the fact that a draft MSC exists is also slightly confusing

[richvdh]

Given MSC3981 has landed, I guess this can be closed