Content flagging systems console settings (#31411)

* Added enable/disable setting and feature flag

* added rest of notifgication settings

* Added backend for content flagging setting and populated notification values from server side defaults

* WIP user selector

* Added common reviewers UI

* Added additonal reviewers section

* WIP

* WIP

* Team table base

* Added search in teams

* Added search in teams

* Added additional settings section

* WIP

* Inbtegrated reviewers settings

* WIP

* WIP

* Added server side validation

* cleanup

* cleanup

* [skip ci]

* Some refactoring

* type fixes

* lint fix

* test: add content flagging settings test file

* test: add comprehensive unit tests for content flagging settings

* enhanced tests

* test: add test file for content flagging additional settings

* test: add comprehensive unit tests for ContentFlaggingAdditionalSettingsSection

* Added additoonal settings test

* test: add empty test file for team reviewers section

* test: add comprehensive unit tests for TeamReviewersSection component

* test: update tests to handle async data fetching in team reviewers section

* test: add empty test file for content reviewers component

* feat: add comprehensive unit tests for ContentFlaggingContentReviewers component

* Added ContentFlaggingContentReviewersContentFlaggingContentReviewers test

* test: add notification settings test file for content flagging

* test: add comprehensive unit tests for content flagging notification settings

* Added ContentFlaggingNotificationSettingsSection tests

* test: add user profile pill test file

* test: add comprehensive unit tests for UserProfilePill component

* refactor: Replace enzyme shallow with renderWithContext in user_profile_pill tests

* Added UserProfilePill tests

* test: add empty test file for content reviewers team option

* test: add comprehensive unit tests for TeamOptionComponent

* Added TeamOptionComponent tests

* test: add empty test file for reason_option component

* test: add comprehensive unit tests for ReasonOption component

* Added ReasonOption tests

* cleanup

* Fixed i18n error

* fixed e2e test lijnt issues

* Updated test cases

* Added snaoshot

* Updated snaoshot

* lint fix

* lint fix

* review fixes

* updated snapshot

* CI

* Review fixes

* Removed an test, updated comment

* CI

* Test update

server/public/model/config.go

@@ -3884,6 +3884,7 @@ type Config struct {
 	WranglerSettings            WranglerSettings
 	ConnectedWorkspacesSettings ConnectedWorkspacesSettings
 	AccessControlSettings       AccessControlSettings
+	ContentFlaggingSettings     ContentFlaggingSettings
 }
 
 func (o *Config) Auditable() map[string]any {
@@ -4002,6 +4003,7 @@ func (o *Config) SetDefaults() {
 	o.WranglerSettings.SetDefaults()
 	o.ConnectedWorkspacesSettings.SetDefaults(isUpdate, o.ExperimentalSettings)
 	o.AccessControlSettings.SetDefaults()
+	o.ContentFlaggingSettings.SetDefaults()
 }
 
 func (o *Config) IsValid() *AppError {
@@ -4129,6 +4131,10 @@ func (o *Config) IsValid() *AppError {
 		}
 	}
 
+	if appErr := o.ContentFlaggingSettings.IsValid(); appErr != nil {
+		return appErr
+	}
+
 	return nil
 }