ThemeDrawer: Change theme from anywhere and preview them (#100405)

* ThemeDrawer: Change theme from anywhere and preview them

* Update

* added subtitle

* Use new component

* Fixes

* Fix runtime ony wrong prop

* Fixed saving issue

* update lang file

* Fixed circular dep

* fix import

pkg/api/dtos/frontend_settings.go

@@ -34,6 +34,7 @@ type FrontendSettingsAuthDTO struct {
 	DisableLogin                  bool `json:"disableLogin"`
 	BasicAuthStrongPasswordPolicy bool `json:"basicAuthStrongPasswordPolicy"`
 	PasswordlessEnabled           bool `json:"passwordlessEnabled"`
+	DisableSignoutMenu            bool `json:"disableSignoutMenu"`
 }
 
 type FrontendSettingsBuildInfoDTO struct {

pkg/api/frontendsettings.go

@@ -367,6 +367,7 @@ func (hs *HTTPServer) getFrontendSettings(c *contextmodel.ReqContext) (*dtos.Fro
 		OktaSkipOrgRoleSync:           parseSkipOrgRoleSyncEnabled(oauthProviders[social.OktaProviderName]),
 		DisableLogin:                  hs.Cfg.DisableLogin,
 		BasicAuthStrongPasswordPolicy: hs.Cfg.BasicAuthStrongPasswordPolicy,
+		DisableSignoutMenu:            hs.Cfg.DisableSignoutMenu,
 	}
 
 	if hs.Cfg.PasswordlessMagicLinkAuth.Enabled && hs.Features.IsEnabled(c.Req.Context(), featuremgmt.FlagPasswordlessMagicLinkAuthentication) {