Replace Algolia search with Quarto built-in search (#2007)

Author: cderv

.github/workflows/README.md

@@ -30,11 +30,6 @@ Note that technically, <prerelease.quarto.org> is also a deploy preview on Netli
     - For `prerelease` branch, we use `git cherry-pick` the commit from main following previous above step. 
     - Then we trigger the `publish.yml` workflow with `workflow_call` event trigger for each of the branch.
 
-- `upload-index.yml` - This workflow is triggered by a cron schedule. It updates the indexes for Algolia search engine, which powers the sites search. 
-  - `search.json` is built when the website is rendered and then it is deployed to the website.
-  - This index file is retrieved on deployed website to be updated on Algolia.
-  - Both `quarto.org` and `prerelease.quarto.org` indexes are updated in the same run - they each use one specific algolia index
-
 - `draft-check.yml` - A lightweight workflow that detects `draft: true` pages among changed `.qmd` files. Runs on all PRs to `main` and `prerelease` with no `paths-ignore`, so it always creates a status check. 
   - Uses the reusable composite action at `.github/workflows/actions/detect-drafts/`.
   - Configured as a required status check on `main` (`check-drafts` job), blocking merge until `draft: true` is removed.

.github/workflows/algolia-config.json

@@ -13,9 +13,6 @@ website:
     content: "Pre-release (v{{< meta version >}}) Documentation: [Download v{{< meta version >}}](/docs/download/prerelease.qmd), [Current Release Docs](http://quarto.org) "
   navbar:
     pinned: true
-  search:
-    algolia:
-      index-name: prerelease_QUARTO
 
 format:
   html:

.github/workflows/test-algolia-upload.yml

@@ -1,8 +1,6 @@
 project:
   type: website
   output-dir: _site
-  post-render:
-    - _tools/algolia-add-custom-attribute.ts
   resources:
     - "/docs/download/_download.json"
     - "/docs/download/_prerelease.json"
@@ -31,12 +29,6 @@ website:
   search:
     show-item-context: true
     type: overlay
-    algolia:
-      index-name: prod_QUARTO
-      application-id: ZPJB5I1QN7
-      search-only-api-key: 49ee55c4d51cbb25a06182d9eef55814
-      analytics-events: true
-      show-logo: true
   page-footer:
     left: |
       Proudly supported by

.github/workflows/upload-algolia.rb

@@ -7,7 +7,6 @@ Utility scripts for the quarto-web project. Run with `quarto run` (TypeScript, R
 | Script | Language | Description |
 |--------|----------|-------------|
 | `publish-date.ts` | TypeScript | Set a blog post date to today and rename its directory to match |
-| `algolia-add-custom-attribute.ts` | TypeScript | Post-render hook: adds custom attributes to Algolia search index |
 | `reference.ts` | TypeScript | Generate reference documentation |
 | `reference-cli-generate-md.R` | R | Generate CLI reference markdown |
 | `gallery-screenshot.R` | R | Capture gallery screenshots |