fix(receive): block new addresses during rescan

[parrth20]

Summary

• Prevent new address requests while a wallet rescan is active.
• Disable the reveal and refresh address buttons during rescanning.
• Add regression coverage for the rescan state.

Closes #1361

[github-actions]

Coverage Report

Status	Category	Percentage	Covered / Total
🟢	Lines	89.53% (🎯 85%)	4554 / 5086
🟢	Statements	89.12% (🎯 85%)	5001 / 5611
🟢	Functions	87.25% (🎯 85%)	1623 / 1860
🟢	Branches	81.33% (🎯 80%)	3019 / 3712

File Coverage

File	Stmts	Branches	Functions	Lines	Uncovered Lines
Changed Files
src/components/receive/ReceivePage.tsx	87.5%	92.1%	78.57%	89.18%	88, 107, 112, 231-232

Generated in workflow #3495 for commit 8583cca by the Vitest Coverage Report Action

[theborakompanioni]

Can this be removed or externalized into a variable (e.g. !operationEnabled) so there is a single place to change, should there be further restrictions?

e.g. imho this might also be true if the maker is running, since collaborative tx outputs come from purpose "receive" (m/84'/0'/{jarIndex}'/0/x) instead of the "change" (m/84'/0'/{jarIndex}'/1/x).

Is that taken care of in joinmarket-ng (maker does not use address already shown to the user and vice versa) @m0wer ?

[theborakompanioni]

Only NITs -> ACK.

[theborakompanioni]

reACK.