feats: fillering using Index Honcon config data ,issue(#589)

[Arunanshu655]

This PR adds metadata-based filtering support to the site search by generating a metadata.json file at build time containing author, tags for each blog post and event.

Here I am able to expose this data to protosearch then enabled filtering by author / tag in search.

according to issue #589

I have done:

• able to generate search/metadata.json at build time

• link it to serve time code

- Added a completely isolated metadata filter that loads metadata.json and filters by tag and author client-side.

also fixed

Wrapped the GitHub fetch for security.md timeout issue in handleErrorWith

demo:

[armanbilge]

Thanks for the PR.

1. The diff is much too large. Please review diffs to make sure they are reasonable before opening a PR.
2. As explained in the issue that you linked, we would like to implement this functionality using Protosearch, not raw JavaScript.

Thus, I will close this PR.

[Arunanshu655]

Thanks for your feedback, I will try to change my approach