Add intro blurb and adjust detail page layout

[brianlove]

Include the Wikipedia intro blurb text (where available) and adjust the detail page layout to work better on smaller viewports.

[github-actions]

No need for rebasing 👍
behind_count is 0
ahead_count is 2

[github-actions]

JavaScript Coverage

Summary

Lines	Statements	Branches	Functions
	73.07% (266/364)	61.33% (92/150)	77.04% (94/122)

Modified Files • (73%)

File	% Stmts	% Branch	% Funcs	% Lines	Uncovered Line #s
All files	73.07	61.33	77.04	73.56
components	74.5	65.11	77.89	74.91
DetailView.jsx	0	0	0	0	28–150
DetailViewIntro.jsx	0	0	0	0	6–61

[niharikasingh]

I'm not sure to what extent you intended to address responsiveness in this ticket. I noticed a couple weird things for narrow viewports, but if you want to make a different ticket for them, you can merge this.

1. I started with a wide window and then dragged it to be narrower. At 485px, there was overlap between text and graphs.

2. I refreshed the screen on this narrow viewport, and while the overlap went away, the legend for the last chart is cut off.

[jmelot]

This seems fine. The graph overlap issue Neha mentioned has come up before, if you don't want to address it here you could open an issue about it.

Can you call back to something like "No description available" for companies that don't have one (e.g. 1791-state-grid)? We have student annotators tracking these down so hopefully once they're done this won't be an issue, but still good to have the fallback