Refactor UX of wallets settings

[tobeycodes]

• move buttons to dropdown
• use dropdown in wallet details
• clean up account list feat(settings): improve ux of accounts list #815
• navigate to account details (?)
• implement account delete (feat(settings): improve ux of accounts list #815) + edit (from refactor(db-react): remove unused hooks #739)
• follow-up: deleting a wallet should delete the related accounts. feat: ensure deleting wallet deletes connected accounts #765

[github-actions]

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