This PR updates the ordering of the agent profiles in the tool selector
to respect the order they are defined in in the settings instead of
sorting them alphabetically.
This gives the user more control, and allows them to order the profiles
as they desire.
Release Notes:
- N/A
This PR moves the definitions of the built-in agent profiles into the
default `settings.json`.
It also changes the behavior of how this setting is treated when merging
settings such that the set of profiles will be merged. This is so users
don't clobber the built-in profiles when adding profiles of their own.
Release Notes:
- N/A
