fix: normalize Bugzilla URLs before thumb lookup

[santoslgl01-web]

Summary

Fixes #10

Changes

• Normalize tracker URLs before sending them to the Bountysource thumbs API.
• Strip URL fragments so comment anchors do not create parse retries.
• Canonicalize Bugzilla show_bug.cgi links to ?id=<number>, including URLs where id appears after other query parameters.
• Allow Bugzilla issue pages with id later in the query string to receive the thumbs widget.

Testing

• node --check data/thumbs.js
• Smoke-tested the updated Bugzilla URL-matching regex against canonical and extra-parameter Bugzilla URLs.

Bounty

This PR addresses the bounty on issue #10.

[CLAassistant]

All committers have signed the CLA.

[santoslgl01-web]

Hi! Just checking in — please let me know if any changes are needed. Happy to update the PR. Thanks! 🙂

[santoslgl01-web]

Hi! Friendly ping on this PR in case it slipped through the queue. The URL-normalization fix is ready from my side; if you'd like any adjustments or extra tests, I'm happy to update it. Thanks!