* Core - Fix default headset layouts and the z-index of devices placed by the auto-arrange fallback
- Headsets with 2 or 4 LEDs get their default layout, the files are named "... LEDs headset.xml"
- Devices placed by the auto-arrange fallback get the z-index of their type
* Core - Fall back to the default value passed to GetSetting when a stored setting can't be read
* Core - Fix storing, cloning and migrating profiles
- New profiles are stored at the current migration version, so they're no longer migrated on every start and can be duplicated right away
- A category created at the top is listed first right away, so its profiles render on top
- CloneProfileConfiguration makes a copy of the stored data, saving a clone stores its profile through the original
- Importing a profile raises ProfileAdded
- A profile configuration that isn't valid JSON is logged and skipped instead of stopping all migrations
- A stored profile without a version is migrated from version 0, like an imported one
- ProfileCategoryRepository.IsUnique returns true when the name is free
- M0001 and M0004 leave a missing node type or storage out instead of writing null
- M0003 also unwraps a list that is an item of another list
RobertBeekman