feat: detect incoming transactions using accounts API

[matthewwalsh0]

Explanation

Poll for incoming transactions using the accounts API rather than Etherscan.

Specifically:

• Remove polling on each new block via PollingBlockTracker.
  • Polling will occur every 30 seconds and support multiple chains simultaneously.
• Remove etherscan util and EtherscanRemoteTransactionSource.
• Create accounts-api util and AccountsApiRemoteTransactionSource.
• Remove ETHERSCAN_SUPPORTED_NETWORKS constant.
• Replace block number based query optimisation with cursors.
• Use single instance of IncomingTransactionHelper.
  • Remove IncomingTransactionHelper instance creation from MultichainTrackingHelper.
• Clear lastFetchedBlockNumbers when calling wipeTransactions.
• Move caching logic inside RemoteTransactionSource via getCache and updateCache properties.

References

Changelog

See CHANGELOG.md.

Checklist

• I've updated the test suite for new or updated code as appropriate
• I've updated documentation (JSDoc, Markdown, etc.) for new or updated code as appropriate
• I've highlighted breaking changes using the "BREAKING" category above as appropriate
• I've prepared draft pull requests for clients and consumer packages to resolve any breaking changes

[matthewwalsh0]

@metamaskbot publish-preview

[github-actions]

Preview builds have been published. See these instructions for more information about preview builds.

Expand for full list of packages and versions.

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