* fix: use fs/promises for settings
This PR switches from synchronous operations with the 'fs' module to asynchronous operations with
the 'fs/promises' module. It also corrects a small error with hostname migration.
* fix: add missing merge function of default and current config
* refactor: add more logs to migration
Currently, the language profiles removed with Sonarr v4 are still available for compatibility
reasons. However, Jellyseerr still queries and displays language profiles (marking them as
“Deprecated”). This PR hides and does not query language profiles unless Sonarr v3 is used.
fix#207
* feat(servarr): auto fill base url when testing service if missing
This will fill the base URL of the *arr service only if it's missing and the base URL hasn't been
provided beforehand
* fix(servarr): replace redundant check
* fix(servarr): suggested changes
