Release v0.3.3

[0x2142]

Changelog:

• Additional filtering options for alerts:
  • Sublabels
  • Minimum label score
  • Quiet hours
• Ability to modify snapshot when retrieved from Frigate: include bounding box / timestamp or crop snapshot
• Allow use of template variables within HTTP headers sent to notification providers
  • Ntfy action button can now be overrriden by defining a custom X-Actions header in the config file
  • Templates can also now include information from environment variables