Remove more global refs / state (#7723)

* remove more global refs / state

* fix job enterprise initialization

* fix api4 test compilation

* saml api endpoints fix

model/config.go

@@ -522,6 +522,8 @@ type PluginSettings struct {
 	PluginStates  map[string]*PluginState
 }
 
+type ConfigFunc func() *Config
+
 type Config struct {
 	ServiceSettings       ServiceSettings
 	TeamSettings          TeamSettings