[Enhancement] Add API to be able to add applications / urls dynamically

[mwolfaardt]

Add a API to be able to add new applications and Url's dynamically. I deploy my self hosted stack using Ansible, and it would be great to add to the dashboard once the application is deployed.

[LinuxServer-CI]

This issue has been automatically marked as stale because it has not had recent activity. This might be due to missing feedback from OP. It will be closed if no further activity occurs. Thank you for your contributions.