GDK reconfigure needs improvements for FDW

Current GDK reconfigure, does not refresh FDW database for development and test environments. Also, I found out that the way we are configuring the FDW connection for the test environment is not 100% correct:

In the test environment, we need an instance where we can write data to, so we can't use the replicated database. The best scenario here is to re-use the tracking database so we can use FactoryBot and FDW at the same time.

make postgresql/port also is not working on OS X. After !428 (merged) added a fix for Linux but looks like we didn't catch an issue with escaping the \ used in the regular expression. The result is that when using a different port, it was generating an invalid postgresql.conf file.