Add the port when saving the instance

[njuguna-n]

Describe the bug
Currently, instances that make use of a specific port for example cht.example.com:3000 and syncing the medic database will be saved as cht.example.com/medic in the source column in the couchdb_progress table.

To Reproduce

1. Use a dev CHT Core instance in which the URL has a port
2. Run CHT Sync and check the source column in the couchdb_progress table.

Expected behavior
The instance URL is saved with the specified port.

Logs

Screenshots

Environment

• Instance
• Client platform: (eg: Windows, MacOS, Linux)

Additional context