Remove Laravel Integration from docs homepage

Replaced "Laravel Integration" feature with "Team Collaboration" since
Laravel integration is deferred to a future release.

Generated with [Claude Code](https://claude.ai/code)
via [Happy](https://happy.engineering)

Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>

Author: 3 people

docs/index.md

@@ -26,8 +26,8 @@ features:
   - title: CLI First
     details: Powerful command-line interface built for CI/CD automation.
 
-  - title: Laravel Integration
-    details: Native Laravel support with helper functions and service provider.
+  - title: Team Collaboration
+    details: Share vault configurations and manage secrets across your team.
 
   - title: Security Focused
     details: Encrypted storage, secure AWS integration, and masked output by default.