* Package tart binary into app bundle when running via run-signed.sh
This is what happens when installing the tart application package
as built by CI. We should stay as close as possible to the install
situation during development, so that we get bug/behavior parity.
For example, an app bundle behaves differently than a standalone
executable when it comes to bringing up a Dock icon for the app.
* Set activation policy to prohibited when starting in no graphics mode
This ensures that the Dock icon is hidden.
* Document XL Cirrus Runners
Also tried to put everything about Cirrus Runners in one place rather than having the information spreaded between https://tart.run and https://github.com/apps/cirrus-runners.
Plus updated docs to use Sonoma.
* Apply suggestions from code review
Co-authored-by: Nikolay Edigaryev <edigaryev@gmail.com>
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Co-authored-by: Nikolay Edigaryev <edigaryev@gmail.com>