Write project file as a .qgz instead of .qgs file

MattF-NSIDC commented 10 months ago

Description

Closes #777

Release rc2 after this and #783 ?

If an item on this list is done or not needed, check it with [x] or click the checkbox.

[x] The PR description links to issues that it resolves with closes #{issue_number}
[x] Config lockfile updated (inv config.export > qgreenland/config/cfg-lock.json)
[x] Environment lockfile updated if needed (conda-lock)
[x] Version bumped if needed (bumpversion (major|minor|patch|prerelease|build))
[x] CHANGELOG.md updated (for user-facing changes)
[x] Documentation updated if needed
[x] New unit tests if needed

MattF-NSIDC commented 10 months ago

Just testing locally (--include=background) before marking ready for review.

trey-stafford commented 10 months ago

Testing on my end now...

MattF-NSIDC commented 10 months ago

Testing passed by Matt, Trey, Twila