Converge on Explore rooms view for Spaces

[kittykat]

I took a look at the original designs and couldn't see any of the Android content at the top of explore, so in Figma they were always more similar to start with.

Small notes:

• After recent discussions, its not clear what to do with subspaces, so just leave as they are on each platform for now
• Please on Android, if there's no description/topic for a room, can the - not be visible (see below)? It should also be a middle dot, not a dash.

Figma Android

[fedrunov]

After discussion with @niquewoodhouse and @kittykat it was decided to keep list item (room) design unchanged, since same layout is used for suggested room item in room list. Also search probably should be a part of toolbar to align with other screens with rooms filtering.

New designs needed so reassign to @niquewoodhouse

[niquewoodhouse]

Thanks @fedrunov for notes above.

Here's some designs with toolbar aligned with other screens, for more consistent experiences.

1. Amended header to be like tabs, with filter on the right as an icon

This would be consistent with the more prominent lists of rooms in the app, so people should know how to use it but it would mean finding the search is slightly harder.

ele-android-explore-space-01.mov

2. Add search like on explore public rooms

This would be my preference but I don't feel super strongly, @fedrunov could you comment on which is easier to do/more feasible please? Thanks

[fedrunov]

1st shouldn't be much harder to implement, and I also like it more than 2nd, so I vote for option 1

[niquewoodhouse]

1st shouldn't be much harder to implement, and I also like it more than 2nd, so I vote for option 1

I don't feel super strongly either way - happy to go with 1