How migrate dashboards of the Search App on a standalone dev Search Head to a Search Head Cluster?

Dear SPLUNK Community, I have one development Search Head and a Search Head Cluster in my cluster. I am using the default search app to create dashboards on a dev SH. I create dashboards with the admin role and share it with all users within the App. I also use custom css, js, and images in the dashboards. Could you please help me understand the best way to migrate the dashboards I develop in dev SH to SHC? (I do have a Deployer as well) I read somewhere that since Search is a default app, I should not be pushing it to a SHC using the Deployer as it may override the app version. Thank you so much! Ishaan