update ts-sdk packages: core, tx-sender, whirlpool

[jshiohaha]

Description

• Update the rest of the ts-sdk packages to accommodate contract upgrade to Anchor 0.31 and Solana 2.1.0
• Most changes stem from a change in types from I<type> to <type, e.g. IInstruction -> Instruction
• XXXn -> BigInt(XXX) changes are due to the following compiler complaint: BigInt literals are not available when targeting lower than ES2020.ts(2737)
• 📓 tx-sender has the most manual changes, mostly due to types or functions that got moved around. There were also some types that were overly prestrictive. By removing explicit return types, I was able to resolve compiler errors. But please double check the changes in this package.

🔗 for reference, the related PRs:

• update ts-sdk/client #1083
• update rust-sdk/client #1082
• upgrade contract anchor version to 0.31.1 #1081

Test

✅ Packages build:yarn build
✅ tx-sender, whirlpool, core: yarn test

[wjthieme]

LGTM

[wjthieme]

XXXn -> BigInt(XXX) changes are due to the following compiler complaint: BigInt literals are not available when targeting lower than ES2020.ts(2737)

Did we lower the target? Why were they available before?

[jshiohaha]

XXXn -> BigInt(XXX) changes are due to the following compiler complaint: BigInt literals are not available when targeting lower than ES2020.ts(2737)

Did we lower the target? Why were they available before?

I think the build passed before, I was mostly seeing a bunch of red in my editor from the compiler. I saw we use BigInt other places as well, so I also thought it was nice to consolidate. But, I'm happy to revert if you prefer the XXXn notation 👍

Update: I went ahead and reverted these changes since the packages build with the previous code.