[web] [fix] header word mark font

Summary:
we've been loading from google fonts this whole time. I removed it preemptively, re-adding the font

Test Plan: should work on prod now

Reviewers: atul, ashoat

Reviewed By: ashoat

Subscribers: ashoat, palys-swm, Adrian, karol-bisztyga

Differential Revision: https://phabricator.ashoat.com/D3100