Summary: Added Dust Extractor Vacuums course.

Why It Matters: This shows a new training course is available.

What Changed:

• Removed a section about resetting passwords and an "Ask BCCSA AI" chat.
• Added a new training course called "Dust Extractor Vacuums (DEV) Safe Use & Maintenance Course".
• Added links for the new DEV course: "Course Details", "Course Login", and "Register Now".