The same labels on every tool
A tool's categories and its free plan now wear the same white labels as everything else on the site, so a row on the tools page reads like the use cases next door.

Fixes and improvements
- Every category on a tools page row is a label with its mark, and links to that category
- A free plan is a Free label with its green dot, on the rows and the featured cards
- A tool page's alternatives and its price card use the same labels
- Our work page's two service cards list what they cover as labels