Add actionable links to Ways to Engage cards on Community page

[NjeriCodeCraft]

Describe the bug
The Ways to Engage section on /community displays 4 cards but none of them are clickable or link anywhere. A visitor reads "Join Local Chapters" but has no way to navigate there directly.

Root cause
In utils/communityData.ts, the engagementWays array has no href property on any of the objects, unlike the exploreCards array above it which has href on every item.

To Reproduce

1. Go to nest.owasp.org/community
2. Scroll to Ways to Engage section
3. Try clicking any of the 4 cards
4. Nothing happens — no navigation

Expected behavior
Each card should be clickable and link to:

• Join Local Chapters → /chapters
• Connect with Members → /members
• Contribute to Projects → /contribute
• Participate in Discussions → OWASP Slack invite

Are you going to work on fixing this?

• Yes
• No

[NjeriCodeCraft]

Hi @arkid15r @kasya, I am a GSoC 2026 applicant for the UI/UX Revamp project. I identified this issue during my platform audit and would love to work on it. Can I be assigned?