* updates api client vars to snake_case for custom messages
* updates api client vars to snake_case for tools
* updates api client vars to snake_case for sync
* updates api client vars to snake_case for secrets engine
* updates api client vars to snake_case for auth
* updates api client vars to snake_case for usage
* updates api client dep to point to gh repo
* fixes custom-messages service unit tests
* fixes configure-ssh test
* fixes configure-ssh test...again
* more updates to api-client for sync
* updates sync destination-header component to use api service
* updates to sync types
* updates sync destination route to use api service
* updates sync destination mirage factory and handler
* refactors sync setup-models test helper and removes store
* refactors sync destination details route to function with api service data
* refactors sync destination secrets route to function with api service data
* adds sync destination edit route