Fixes for tradeID and dependency updates

[jSydorowicz21]

Overview: This PR includes fixes to the tradeID properties in orders.go, also includes package updates and a few typo corrections along with an instrument.go update commit I found useful from @shenxu83

Key Changes:

1. Updates in orders.go:

   • Added TradeID property to OrderPayload
   • Fixed the capitalization on all tradeID properties so they are marshalled and unmarshalled properly

2. Updates in instrument.go:

   • Replaced requestAndUnmarshal with getAndUnmarshal for improved request handling in GetTimeToCandles and GetTimeFromCandles functions.
   • This change ensures uniformity in the codebase.

3. General updates

• Updated godotenv to v1.5.1

Files Affected:

• trade.go
• go.mod
• go.sum
• instrument.go