Add list selector to "New ways to ignore people" lab option

[FSG-Cat]

Your use case

What would you like to do?

Add some type of list selector to new ways to ignore people lab option.

Why would you like to do it?

This would improve the user experiece of this lab option as it would allow you to easily select a list without having to fetch its room ID or alias akin to how adding rooms to spaces works.

How would you like to achieve it?

Using the MSC3784 room type to filter out all policy lists the account is joined to and present them in a list the way addding rooms to spaces works today. Ofc this would need a dont see your room show all button due to the "legacy" problem that the MSC refers to.

Have you considered any alternatives?

No response

Additional context

No response

[t3chguy]

The labs flag is likely to be removed given it hasn't been maintained and merged

[FSG-Cat]

#11373 exists as an issue on removing the lab flag and well lets just say that the idea of removing the feature is extremely unpopular in T&S circles.

[MTRNord]

Removing it while not having a solution to the spam seems like a major T&S issue :/

[t3chguy]

The rule for labs flags originally was if not updated in 6 months they get removed, that has slipped for many flags but we will catch up on it sooner or later.

[henk717]

Currently subject to spam attacks from multiple popular rooms. Someone thought me about this hidden flag in what should have been a normal feature as otherwise I can't even properly ignore the person invite spamming. Instead of it being removed it should be made possible for anyone outside of a hidden option to ignore users exactly like this new panel does.