Initial Baby Step to refactoring settings from global vars to instance (#11777)

* wip: start on refactoring settings

* settings: progress on settings refactor

* refactor: progress on settings refactoring

* fix: fixed failing test

* settings: moved smtp settings from global to instance

pkg/api/http_server.go

@@ -35,9 +35,10 @@ type HTTPServer struct {
 	context       context.Context
 	streamManager *live.StreamManager
 	cache         *gocache.Cache
-	RouteRegister RouteRegister `inject:""`
+	httpSrv       *http.Server
 
-	httpSrv *http.Server
+	RouteRegister RouteRegister `inject:""`
+	Bus           bus.Bus       `inject:""`
 }
 
 func (hs *HTTPServer) Init() {