Custom SMTP Settings (#561)

* 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>

api/routes/api.php

@@ -142,6 +142,7 @@ Route::group(['middleware' => 'auth:api'], function () {
                     [FormController::class, 'index']
                 )->name('forms.index');
                 Route::put('/custom-domains', [WorkspaceController::class, 'saveCustomDomain'])->name('save-custom-domains');
+                Route::put('/email-settings', [WorkspaceController::class, 'saveEmailSettings'])->name('save-email-settings');
                 Route::delete('/', [WorkspaceController::class, 'delete'])->name('delete');
 
                 Route::middleware('pro-form')->group(function () {