AI-powered fixes now support anonymous audits

This update makes it easier for everyone to benefit from AI-driven remediation, even if you choose to run audits without associating them with a specific website. By removing the requirement for a linked website record, anonymous audits can now cache and reuse AI fixes smoothly.

**Smoother AI fix experience for anonymous use**
Behind the scenes, we've improved how AI suggestions are stored so they work seamlessly when no website ID is provided. This means less friction and a more inclusive experience if you prefer to audit anonymously.

**Cleaned-up user interface**
We've also refreshed the appearance by removing some gradient styling from the AI fixes button and section header, resulting in a cleaner, more straightforward look that helps you focus on the content.