Summary: Added Accessibility product category

Why It Matters: This change shows a new focus on Accessibility testing.

What Changed:

• Added "Accessibility" as a new product category.
• Added new links under "Accessibility" for:
  • Layout Scanner
  • Component Scanner
  • Workflow Analyzer (Web)
  • Test Automation (Web)
  • Screen Readers (Web)
  • Assisted Tests
  • Workflow Analyzer (App)
  • Test Automation (App)
  • Screen Readers (App)
  • Website Scanner (Accessibility)
  • Spectra for Web
  • Spectra for App
  • AI Agents (under Accessibility)
• Removed some duplicate product links from the "Products" section.
• Changed the description for "Low Code Automation" from "Automation without coding" to "AI-driven automated tests".
• Added "Accessibility" to the main product navigation.