Implement react-bootstrap

[whoabuddy]

Is your feature request related to a problem? Please describe.

There is a lot of HTML in the code right now, and it's mostly based around rows, columns, and alignment.

We should review react-bootstrap as an alternative, which should be relatively straight-forward to implement per the discussion in #93.

Describe the solution you'd like

Replace the current bootstrap code with components. I suspect this will make a large number of the interactions easier.

Describe alternatives you've considered

Leave as-is, but the shorter we make the learning curve, the better!