fix: restore Savanna and Classic titles in DocSearch

[ngarakapati]

Summary

• Add a cloud-theme DocSearch selector set for Savanna and Cloud Classic pages, whose live HTML no longer includes .nav-panel-explore .context .title and wraps the page h1 in .page-header.
• Those missing selectors were why production search showed null for labels and titles on Savanna/Classic results.

Test plan

• Confirm config.json still uses versionless for Home and default for versioned docs
• After merge, copy config.json into the DocSearch scraper working copy and run algolia/docsearch-scraper (already validated locally: 141,670 hits)
• On https://www.tigergraph.com/docs, search for "invite users" and confirm left labels/titles are TigerGraph Savanna / TigerGraph Cloud Classic instead of null

[netlify]

‼️ Deploy request for docs-tigergraph rejected.

Name	Link
🔨 Latest commit	9106d37

[Tushar-TG-14]

@ngarakapati The selector changes look correct.
Could you confirm the local scraper output also shows the expected hierarchy.lvl0 / lvl1 values for both Savanna and Cloud Classic (for example, TigerGraph Savanna + the page title), rather than only confirming that the scraper completes with 141,670 hits? This would verify that the new XPath and .page-header > h1.page selectors are actually producing the intended DocSearch hierarchy.

[ngarakapati]

Confirmed locally and in production against live Savanna and Classic pages using the new cloud-theme selectors:

• Savanna Invite Users → lvl0: TigerGraph Savanna, lvl1: Invite Users
• Classic Manage Users in an Organization → lvl0: TigerGraph Cloud Classic, lvl1: Manage Users in an Organization

The XPath and .page-header > h1.page selectors produce the intended hierarchy. The old .nav-panel-explore / .doc > h1.page selectors still match nothing on those pages.