realtime stream of fire alerts

[hyzhak]

user could see new fire message without any actions from they side

client

• have 2 lists (fetched, stream playlist)
  because we can fetch a lot of items and in different orders. Even in realtime. But playlist should reflect what actually we show to user. 2 redux states for fetched entities and shown entities #62
• conservative update (show big button that we have N updates) and show updates one click conservative news feed update #61
• realtime update load right away realtime update load right away #63
• (?) propose realtime update when user stick to the top of page realtime update load right away #63 (the same)

[hyzhak]

it duplicate #49 , partly