wip: feat: fedimint client rpc ng

[maan2003]

• abstract away web worker transport
• ~~(wip) handle multiple federations~~ (delayed for some other time)

[changeset-bot[bot]]

⚠️ No Changeset found

Latest commit: 0132a2e39725174fb43d5178494d447dde6881cb

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

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

[alexlwn123]

replaced by https://github.com/fedimint/fedimint-web-sdk/pull/159 and https://github.com/fedimint/fedimint-web-sdk/pull/158