I have opened a PR which adds a UI for importing and exporting templates. Even though it is marked as work in progress, the base functionality is there and it is possible to import/export templates from UI.
Propagating errors to user (for example when user does not have permissions to push into git repo) is a crucial part that is currently missing and we will need adjustments in core, so I’ll be looking into that.
If foreman_templates is something that you are interested in or use, I will be grateful for any feedback on functionality, visuals or code quality.