docs: update landing page

[arnewouters]

Fixes

Summary

Changes

Please provide a summary of what's being changed

Suggest AWS MCP instead of API MCP or Knowledge MCP (similar to #1856)

User experience

Please share what the user experience looks like before and after this change

Before:

After:

Checklist

If your change doesn't seem to apply, please leave them unchecked.

• I have reviewed the contributing guidelines
• I have performed a self-review of this change
• Changes have been tested
• Changes are documented

Is this a breaking change? (Y/N)

RFC issue number:

Checklist:

• Migration process documented
• Implement warnings (if it can live side by side)

Acknowledgment

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of the project license.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.42%. Comparing base (be850fa) to head (77aa367).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1859   +/-   ##
=======================================
  Coverage   90.42%   90.42%           
=======================================
  Files         851      851           
  Lines       63317    63317           
  Branches    10253    10253           
=======================================
+ Hits        57253    57254    +1     
  Misses       3772     3772           
+ Partials     2292     2291    -1     

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