Redesign members list

[ara4n]

• Move invite to bottom
• Show the first N members, with a "(...) 542 more" at bottom
• Put search bar on top (optional?)

[ara4n]

New plan: leave invite at top, but name it "Invite / Search".

[ara4n]

Also going to ensure that we literally show only one page of members, making room at the bottom for invited members to always be visible.

[kegsay]

Related: #509

Braindumping from IRL:

• Limit the number of MemberTiles and overflow the rest to a "and X more" tile.
• If there are no invites pending, this list can occupy all the space it does currently.
• If there ARE invites pending, this list should occupy ~80% and the invite section should be "sticky" at the bottom and occupy ~20%. We can programatically work this out because the MemberTiles have a constant height (so it becomes Math.floor((heightAvailable * 0.8) / heightOfTile) tiles)

[ara4n]

I experimented with making the invites section 'sticky' using flexbox, and whilst it's doable, it feels a bit weird to have so many different scrolling areas in the panel and non-integer cut-off EntityTiles between the joined & invited sections. So I think the original plan as per the previous comment is probably still the best.

[kegsay]

Now that we have "and X more" that concludes this bug afaik. Closing.