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/app/Models/Workspace.php

@@ -25,6 +25,7 @@ class Workspace extends Model implements CachableAttributes
         'icon',
         'user_id',
         'custom_domain',
+        'settings'
     ];
 
     protected $appends = [
@@ -33,10 +34,11 @@ class Workspace extends Model implements CachableAttributes
         'is_enterprise',
     ];
 
-    protected function casts()
+    protected function casts(): array
     {
         return [
             'custom_domains' => 'array',
+            'settings' => 'array'
         ];
     }
 
@@ -201,5 +203,4 @@ class Workspace extends Model implements CachableAttributes
     {
         return $this->hasMany(Form::class);
     }
-
 }