Add more draw types to /game/export/:id

[HaonRekcef]

Currently the app can detect when it was a three-fold repetition based on the /game/export/:id endpoint json field
However there are more draw types that are not sent like this by the api:

• mutual agreement
• fifty moves

No need for insufficient material as the app is detecting this based on the last position of the game.

needed for
lichess-org/mobile#2391

[SergioGlorias]

No need for insufficient material as the app is detecting this based on the last position of the game.

But not draw claimed
https://lichess.org/forum/lichess-feedback/insufficient-material-with-a-pawn#4

[SergioGlorias]

All status:
https://github.com/lichess-org/scalachess/blob/5ddb00c6263a3a7c2ef02c9bcc3aa21a2f712313/core/src/main/scala/Status.scala#L15-L30

@HaonRekcef in "https://lichess.org/game/export/{gameId}?pgnInJson=true" show all status in status
oh not have mutual or fifty

[HaonRekcef]

All status: https://github.com/lichess-org/scalachess/blob/5ddb00c6263a3a7c2ef02c9bcc3aa21a2f712313/core/src/main/scala/Status.scala#L15-L30

@HaonRekcef in "https://lichess.org/game/export/{gameId}?pgnInJson=true" show all status in status oh not have mutual or fifty

Exactly, mutual and fifty moves are not sent by the server