* Custom SMTP Settings
* Fix lint
* Custom SMTP add in Pricing plan
* Allow reset email settings
* improve custom SMTP using seprate abstract class
* test case for custom SMTP
* fix test case
* UI improvement
* add CASHIER_KEY in phpunit for testcase
* Attempt to fix tests
* Run pint and attempt to fix cache tests
* Fix user management tests
* Fix code linters
* Merged main & fix linting
---------
Co-authored-by: Julien Nahum <julien@nahum.net>
* Re-organize a bit controllers
* Added the featureflagcontroller
* Implement feature flags in the front-end
* Clean env files
* Clean console.log messages
* Fix feature flag test