Improve UI of term information elements

[mapachurro]

So currently we've got this:

But, like, those heading sizes are kind of arbitrary

Additionally, it would good to have some color variance between, eg. the h3 tag and the text it introduces

thank you @i18nlaurel

[mapachurro]

• Improved the sizing and bolding, the other day

Still to-do: improve the color differentiation, workshop it, etc

[mapachurro]

Working on this on #35