Use correct function to generate apriltag for ps when printing

[vedran]

The commit https://github.com/FolkComputer/folk/commit/b7491c42f2d802b0a184e173ed21571f79fca0eb renamed the original tagImageForId to tagPsForId and created a new definition for tagImageForId. The code that generates the.psfile for printing should rely on the original behavior, so it needs to point totagPsForId` as well.

[osnr]

Thanks!