Bump min sdk to 16 and move defaultConfig to build.gradle

[fgei]

Bump min sdk to 16 and move defaultConfig data from the manifest to build gradle file.

Reviewer: @subsymbolic Asana: https://app.asana.com/0/19626896268257/333077212749536

Description: Bump min sdk to 16 before merging new PR and to prepare a new release

Reviewer Checklist:

• [x] Ensure the PR solves the problem
• [x] Review every line of code
• [ ] Ensure the PR does no harm by testing the changes thoroughly
• [x] Get help if you're uncomfortable with any of the above!
• [x] Determine if there are any quick wins that improve the implementation

PR DRI Checklist:

• [ ] Get advice or leverage existing code
• [ ] Agree on technical approach with reviewer (if the changes are nuanced)
• [ ] Ensure that there is a testing strategy (and documented non-automated tests)
• [ ] Ensure there is a documented monitoring strategy (if necessary)
• [ ] Consider systems implications (Database connections, Grafana stats, CPU)

[subsymbolic]

Thanks, @fgei. I'm away this week so I'm reassigning this one to @nilnilnil.

[nilnilnil]

👍