Public-facing user home page redesign

When you click on someone's webid, wherever you click on a link to them in the solid world, they will want you to see a profile display which does them credit and represents them well on the web. This is quite different from the private home screen which is covered in https://github.com/solid/node-solid-server/issues/889.
What sort of things?

• Photo(s)

• Customizable style, color, etc, background images, etc

• Contact details which are public.

• Statement like twitter profile

• Timeline of public things posts, etc

Optionally a selection of:

• Professional role, status, CVS a la linked in
• My public folder
• My public photos, music, video clips.
• Publications, blogs, papers,
• List of my public social graph (friends list)
• etc

but also things which as a viewer

Interact to me:

• Message me
• mail me
• Invite me to things.

If viewer not logged on, allow to log on.

If viewer logged on, possibly give more things, but pulling data from ACL's files like a friends-only timeline, indexes, etc.

Start by reviewing issue 889 to separate the private home screen from this public-facing profile. The issue lists many optional profile, social, media, and interaction features but names no files or tests; scope and acceptance criteria need to be agreed before implementation can be considered done.