Feature request: Add senders id to the chat reaction information

[BillTheBeast]

What do you want to see in the API?

Chat Websocket ReceiveReaction message (and the stored chat history received from GET /chat/history) should return the id of the person sending the reaction.

Any additional info?

Currently the reaction object sent by the server contains a field for the name of the player, but it would likely be more sensible to handle the matching in the clientside with the id of the sender instead.

[CapoMK25]

Implemented successfully by testing this out with a console.log test on top of unit tests.

Might take a little while since we currently have transaction support to merge before this can be merged as both touch parts of the same code.