feat: implement Stellar transaction history view

[thebabalola]

Added a new History page and a StellarHistory component to view transaction history for the connected Stellar wallet. Closes #8.

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[thebabalola]

Hi @maintainer, I've implemented the Stellar transaction history view. Ready for review!

[thebabalola]

Hi @maintainer, I've updated this PR. Ready for review!

[truthixify]

The skeleton page is a start, but the scope here doesn't match what issue #8 asked for. Two things:

1. Scope. The PR fetches Horizon transactions for the connected wallet. The issue is asking for Wraith-specific activity tracking: stealth sends/receives/withdrawals/name-registrations, categorized by kind and direction, persisted in localStorage per (chain, wallet), with status transitions (pending → confirmed → failed) polled against Horizon, filterable by chain/kind/status, with clear-history and a Playwright test. The bare Horizon list misses the protocol-specific surface that makes this useful.

2. Rebase. Branch is from pre-develop main, the diff would revert StellarSend/Receive work that just merged. After expanding scope, rebase:

   git fetch origin
   git rebase origin/develop
   git push --force-with-lease

   Drop your changes to StellarSend.tsx and StellarReceive.tsx (they're stale-base reverts) and instead add hooks in those files that record entries into the new history store. Keep StellarHistory.tsx and pages/History.tsx but expand them per the issue spec.

Thanks @thebabalola.