Fix up Unknown widget to work again

Store module Type in common settings to enable this
Simplify the function params to be more inline with existing ones, vs being unique

cfg/common_settings.go

@@ -27,6 +27,7 @@ type Colors struct {
 
 type Module struct {
 	Name string
+	Type string
 }
 
 type Position struct {
@@ -82,6 +83,7 @@ func NewCommonSettingsFromModule(name, defaultTitle string, moduleConfig *config
 
 		Module: Module{
 			Name: name,
+			Type: moduleConfig.UString("type", name),
 		},
 
 		Position: Position{