Add common localhost origins as cors defaults

Description

Adds common origins on localhost (http://{localhost, 127.0.0.1}:{8080, 8081}) to the default allowed API origins setting.

Changes

The setting is no longer empty.

Additions

None.

Test and Review

To be filled in by the reviewers

• All of the methods are commented to expectation

• The methods are tested to satisfaction

• There are no unnecessary files present in the MR

• The continuous integration has no problems with the MR

• The MR is filled in as requested (including labels, milestones, and reviewers)

• The documentation is up-to-date

• All nullable parameters are marked as such