Allow units for page size

[nikischin]

In addition to #2771 I also implemented the support for units "in", "cm", "mm" to the <Page/> size attribute.

Includes the fixes for the dpi from #2771 already but had to be a bit rewritten.

implements #2008

[changeset-bot]

⚠️ No Changeset found

Latest commit: 0e68df1

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[nikischin]

Thank you for merging #2771 @diegomura, in addition I also merged the branch and prepared this PR.

[nikischin]

Could you have a look on this please @diegomura? Thank you so much!