fix: update block expiration buffers for short term orders (#444)

Due to recent block time decreases, the default 3 block expiration for
short term orders is not enough. This PR bumps the SHORT_BLOCK_FORWARD
to 20 blocks and the SHORT_BLOCK_WINDOW(allowed upper bound of good till
block delta) to 40

Author: lukabuz

v4-client-js/src/clients/constants.ts

@@ -230,7 +230,7 @@ export const MAX_MEMO_CHARACTERS: number = 256;
 
 export const SHORT_BLOCK_WINDOW: number = 20;
 
-export const SHORT_BLOCK_FORWARD: number = 3;
+export const SHORT_BLOCK_FORWARD: number = 15;
 
 // Querying
 export const PAGE_REQUEST: PageRequest = {

v4-client-py-v2/dydx_v4_client/indexer/rest/constants.py

@@ -70,4 +70,4 @@ class TradingRewardAggregationPeriod:
 DEFAULT_API_TIMEOUT = 3_000
 MAX_MEMO_CHARACTERS = 256
 SHORT_BLOCK_WINDOW = 20
-SHORT_BLOCK_FORWARD = 3
+SHORT_BLOCK_FORWARD = 15