Tea brewing timer

• supports green tea timing
• contains 6 steps/stages of brewing
  • first 30 sec (prepare tea)
  • 3 min
  • 3 min 30 sec
  • 4 min
  • 4 min 30 sec
  • 5 min

TODO:

• Configuration (hard codded version)
  • periods configuration
    • list or periods (at least one should be)
    • minutes for each period

Plans

• keep statistics
• page to show statistics
• Add Jest unit tests
• Update caching key to avoid old functionality