Clicking on a user in a group should show me other groups I share with them

[turt2live]

Description

Currently it brings up a start chat dialog, which is a bit weird. Maybe show a profile page of sorts?

The profile page could be:

• Groups they are in
• Groups I share with them
• Start chat button

Version information

• Platform: web (in-browser)
• Browser: Chrome 61
• OS: Windows 10
• URL: riot.im/develop

[lampholder]

One of the key usecases for groups is for finding people to talk to (mirroring a common pattern whereby users navigate to room member lists to find the "right" person to speak with), so I think the 'start chat' dialog will remain a key part of this component.

Seeing what groups you share with a user sounds like a great feature :)

[turt2live]

Some way to discover more groups would be awesome. Much like liking every page on facebook to associate yourself, it might be desirable to join every group you possibly can.

[heyakyra]

Related to #4428?

[SimonBrandner]

Duplicate of element-hq/element-meta#1366