[Cashtab] Extension version bump
[Cashtab] Extension version bump

Summary: Update extension to match latest features in web wallet (most noticeably, encrypted msgs)

Test Plan:
`npm run extension`
Load locally and test sending and receiving encrypted messages

Reviewers: emack, #bitcoin_abc

Reviewed By: emack, #bitcoin_abc

Differential Revision: https://reviews.bitcoinabc.org/D10849

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