[Bug] replace AccidenzCommons font file with CCAccidenzCommon, update code occurances

[possumbilities]

Description

• https://github.com/creativecommons/cc-accidenz-commons/issues/4

As this is downstream of index-prototype, this PR is the outline for all needed changes here:

• https://github.com/creativecommons/index-prototype/pull/21

Resolution

• [x] I would be interested in resolving this bug.

[possumbilities]

The process at the moment for work on this repository that intersects with Vocabulary (and its assets) are changes that should first be made in the index-prototype repository. Which are then tested, approved, merged, and then introduced here in this repo.

In this way, this repository sites downstream to index-prototype all all matters that that repository is authoritative on (usually Vocabulary matters)

Changes that jump that process will likely be marked as blocked until they're made upstream first.

Sidenote: This need to be documented somewhere more directly. I'll do so, or make an Issue so someone can do so.