Offline Capabilities on web

[Slanfan]

Go through all the Cloud Functions to see what needs to be moved client side to be able to run offline events.

[Slanfan]

Functions that need to be moved Client Side

• [ ] calculateStats
• [ ] pairSwissRound
• [ ] pairRoundRobin
• [ ] generateGroupMatches
• [ ] generateBatchMatches

[Slanfan]

• [x] Create an online observer

https://stackoverflow.com/questions/46598777/check-internet-connection-in-web-using-angular-4