`setTransactionMessageFeePayer{Signer}` now accepts a broader range of inputs

[steveluscher]

Summary

These functions would not accept a simple CompilableTransactionMessage as input. Furthermore, this type was intended to unset the existing fee payer and replace it with the one passed in. Instead, this was producing the union of the old and new fee payers.

Test Plan

pnpm turbo compile:typedefs

Closes #2854.

[changeset-bot[bot]]

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Latest commit: 58d7a9bb6a538b59610a211d6f8bd0005981c282

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[steveluscher]

• #2874 👈
• master

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[steveluscher]

I made you the author of the commit, @lorisleiva, since this was your find.

[steveluscher]

Imma ship this PR none the less, because these other bugs are unrelated to the original bug.