Visual regression on CI

[adekbadek]

Visual regression testing should be ran in CI.
Right now, this part is skipped, because of a font mismatch problem: CI run a Ubuntu system, which has a slightly different default sans-serif font than macOS. For this reason, all visual regression tests will fail because of that.

Possible solution: generate the base images on CI and commit from there (or download as artifacts and commit locally). This makes for a pretty cumbersome workflow, but maybe it's better in the long run.