* feat: register flag passed to fe
* feat: mixpanel tracking for all sign ups
* feat: utm first touch & last touch tracking
* feat(helm): Allows Environment Variable for MP to be configured
- default is enabled
- renames environment variable to ENABLE_MP
* feat(helm network policy): allowlist analytics.speckle.systems
---------
Co-authored-by: Iain Sproat <68657+iainsproat@users.noreply.github.com>