Adjust headers for users and articles

[driesvints]

Make them not page wide but a rectangle image above the page.

[tauseefsshah]

Not page wide but a rectangle

@driesvints Do you mean something like this for articles?

[driesvints]

No, more a rectangle that's the width of the viewing area of the article. Maybe page-wide isn't the right word but more something like not viewport-wide.

[tauseefsshah]

@driesvints How about this?

[driesvints]

looks good! Can we maybe move the text back into the image like we have now?

[tauseefsshah]

[driesvints]

Beautiful! Thank you for this 😄

[tauseefsshah]

You're welcome! This is how the users.profile view looks with boxed header

@driesvints Should I keep it page-wide (existing) or boxed (image above)?

[driesvints]

Boxed, thanks!

[tauseefsshah]

PR for this - #1140