Systray client release

Systray client release.
Some bugfixes.
MacOS binary build compatible with Monterey.

Reliability and deployment improvements

Features

• Enhanced metrics for AWS error rates
• Local watchdog
• Lets Encrypt Certificates

Bug Fixes

• Minor fix on client flag parsing
• UX stalls on AWS list roles reduced via: stricter explicit timeouts, parallelization on certain operations, and negative result caching

Checkpoint release

First release.