Resolve "Update MR template to include `context` and `intent`"

Checklist

• documentation is changed or added in ./docs
• unit tests updated to test changes
• poetry run black ./airgap
• poetry run pylint ./airgap
• poetry run pytest ./airgap

Description of change

Closes #10 (closed) which is an issue to update the Issue and MR templates to clear around intent and context of changes.

• context - The hoppr project had a couple MRs which were lacking the details to explain why they were submitted.

• intent - Update the MR templates to explicitly list context and intent to be listed. Hopefully this will cause contributors to reflect on MR details during submission.