Wrong return type for `connection.getParsedBlock()` when `transactionDetails` is `full`

[pedrobranco]

Hello team,

When using the method connection.getParsedBlock() with the option rawConfig with property transactionDetails: 'full', the return type definition is ParsedAccountsModeBlockResponse, which should be the full object ParsedBlockResponse according to the JSON RPC documentation, the following comment here and the function body here:

  /**
   * Level of transaction detail to return, either "full", "accounts", "signatures", or "none". If
   * parameter not provided, the default detail level is "full". If "accounts" are requested,
   * transaction details only include signatures and an annotated list of accounts in each
   * transaction. Transaction metadata is limited to only: fee, err, pre_balances, post_balances,
   * pre_token_balances, and post_token_balances.
   */
  transactionDetails?: 'accounts' | 'full' | 'none' | 'signatures';

I can open a PR with the fix replacing the default return value to Promise<ParsedBlockResponse>.