Enable signed transactions in signAndSend method

[mmaurello]

Description

Allow signed transaction in signAndSend to make ledger signing work

Checklist

• If this requires a documentation change, I have created a PR that updates the mkdocs/docs directory
• If this requires it, I have updated the Readme
• If necessary, I have updated the examples
• I have verified if I need to create/update unit tests
• I have verified if I need to create/update acceptance tests
• If necessary, I have run acceptance tests on this branch in CI

[changeset-bot]

🦋 Changeset detected

Latest commit: 0f6e9d5

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 5 packages

Name	Type
@moonbeam-network/xcm-config	Patch
@moonbeam-network/xcm-utils	Patch
@moonbeam-network/xcm-sdk	Patch
@moonbeam-network/xcm-builder	Patch
@moonbeam-network/xcm-types	Patch

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Click here if you're a maintainer who wants to add another changeset to this PR

[socket-security]

New and removed dependencies detected. Learn more about Socket for GitHub ↗︎

Package	New capabilities	Transitives	Size	Publisher
npm/@polkadot/[email protected]	Transitive: network	+26	61.8 MB	polkadotjs
npm/@polkadot/[email protected]	Transitive: network	+31	62.2 MB	polkadotjs
npm/@polkadot/[email protected]	Transitive: environment, filesystem, network	+231	251 MB	polkadotjs
npm/@polkadot/[email protected]	None	+4	4.83 MB	polkadotjs

🚮 Removed packages: npm/@polkadot/[email protected], npm/@polkadot/[email protected], npm/@polkadot/[email protected], npm/@polkadot/[email protected]

View full report↗︎