Show large banner when a new code is added

[MKringelhede]

Show a large banner on the dashboard for 30 seconds every time another user adds a JID code.
When multiple events occur the should be queued and display in sequence (might need to lower the 30 seconds if the queue gets too long)

Could look something like this:

Similar banners could be shown (in sequence prioritized in this order):
1a) "New country: ! Well done !"
1b) " added a code from "
2) has taken the th place
3) is now number

It should only show either 1a or 1b.

Each banner type (1a, 1b, 2 ,3) should have its own background color so that it is easy to spot which kind of banner is shown.

Cool feature would be to play a sound when a banner is shown:
1a: A simple "ding"?
1b: A double "ding-ding"?
2: A "dong"?
3: A double "dong-dong"?

[frankbille]

I guess this is only after the page is loaded the first time, so maybe we should look into either a real push-based endpoint (socket.io like endpoint) or a fake version based on pull.

It's a bit difficult to keep track of and calculate the correct changes based on what was there last. It can lead to too complicated code on frontend.

WDYT?