management_url for integration when creating machine user should be individuated

[cheesegrits]

When creating an 'integration' through the COTAK API, with either the ./machine-users or ./integrations endpoints, the 'management_url' should be the specific management URL for the connection on the CloudTAK end, not just the generic https://map.cotak.gov URL.

For example, for the "DFPC GeoTab - WFMS" integration, it should point to https://map.cotak.gov/connection/32/layer.

The requirement here is that admins on the COTAK side of the house need to know exactly where to go to find the ETL / CloudTAK management page for any given integration.

So this ...

... needs to point to this ...