finalize first version of speaker-details page and speaker-list component

[usefulthink]

No description provided.

[Kriesse]

@usefulthink

I added a speaker list component, and three test speaker files with generic content (no more del Rey).
The component is included on the homepage, on /speakers, and on single speaker pages.
The corresponding styles are here.

Notes

• Each speaker now has color and bg, as the mockup specifies varying colors for both text and background. As the text-color is often white, the color for the header title on a single speaker page now uses the bg color (as white would be not visible on the light header background).

• I am seeing a weird broken page with unescaped text (?) when I open a single speaker page. Not exactly sure how to reproduce. Opening the page again in a new tab sometimes fixes it.
  

Preview: Desktop

Preview: Mobile

[RalloTubbs]

details visual feedback:

• shadow behing Una looks cut

• boxes could be higher, because in balance to the other elements they look small, we don't have to make it that high, maybe 20 higher would help, if the fontsize stays like this
• boxes always left aligned: we could always add a next box saying tba

- still the names could be bigger?

• the box on detailpage could have more meat like this

[lukaszklis]

@RalloTubbs if you don’t mind, I’d like to close this issue and create a new ones.

[lukaszklis]

Split into #59, #60, #61

[RalloTubbs]

@lukaszklis please do