Fix app with service setting install bug

[jakeymac]

Description

This merge request addresses a bug where when installing an app that has a service setting, but there are no existing services, an error would show up.

Changes Made to Code

• Updated the run_interactive_services function to not just look for the first service query ([0]), but to flatten out the query(ies) to avoid errors and to make sure it's checking for multiple query sets such as in the case of persistent store services

Related PRs, Issues, and Discussions

• [BUG] Index Error when installing app with service setting and no existing services #1283

Quality Checks

• At least one new test has been written for new code
• New code has 100% test coverage
• Code has been formatted with Black
• Code has been linted with flake8
• Docstrings for new methods have been added
• The documentation has been updated appropriately

[coveralls]

coverage: 100.0%. remained the same — fix-app-with-services-install into main