Logos: Refactoring a bit how logos are rendered (#21421)

pkg/api/dtos/index.go

@@ -15,6 +15,8 @@ type IndexViewData struct {
 	NewGrafanaVersion       string
 	AppName                 string
 	AppNameBodyClass        string
+	FavIcon                 string
+	AppleTouchIcon          string
 }
 
 type PluginCss struct {

pkg/api/index.go

@@ -85,6 +85,8 @@ func (hs *HTTPServer) setIndexViewData(c *m.ReqContext) (*dtos.IndexViewData, er
 		NewGrafanaVersionExists: plugins.GrafanaHasUpdate,
 		AppName:                 setting.ApplicationName,
 		AppNameBodyClass:        getAppNameBodyClass(hs.License.HasValidLicense()),
+		FavIcon:                 "public/img/fav32.png",
+		AppleTouchIcon:          "public/img/apple-touch-icon.png",
 	}
 
 	if setting.DisableGravatar {