Update marketing navbar

[carlosabadia]

No description provided.

[greptile-apps]

Greptile Summary

This PR refreshes the marketing navbar and adds bannerless navigation support. The main changes are:

• Redesigns the Products, Resources, and Solutions menus.
• Adds XY links and active-route handling to the docs navbar.
• Hides the hosting banner on the 404 page.
• Adds shared gutter, caption, and dashed-rule styles.
• Updates the mobile drawer for bannerless pages.

Confidence Score: 5/5

This looks safe to merge.

• No blocking issues found in the changed code.

Important Files Changed

Filename	Overview
docs/app/reflex_docs/views/docs_navbar.py	Adds XY navigation and active-route matching.
packages/reflex-site-shared/src/reflex_site_shared/pages/page404.py	Uses the new bannerless navbar option on the 404 page.
packages/reflex-site-shared/src/reflex_site_shared/styles/assets/tailwind-theme.css	Adds shared spacing, caption, and dashed-rule styles.
packages/reflex-site-shared/src/reflex_site_shared/templates/webpage.py	Adds a backward-compatible banner visibility option to the page template.
packages/reflex-site-shared/src/reflex_site_shared/views/marketing_navbar.py	Redesigns the desktop menus and adds memoized bannerless header rendering.
packages/reflex-site-shared/src/reflex_site_shared/views/sidebar/init.py	Adjusts mobile drawer positioning for pages without the hosting banner.

_{Reviews (1): Last reviewed commit: "Update marketing navbar" | Re-trigger Greptile}

[codspeed-hq]

Merging this PR will not alter performance

✅ 26 untouched benchmarks
⏩ 8 skipped benchmarks¹

---

_{Comparing carlos/update-navbar (6d877b6) with main (9854a3a)}

Footnotes

1. 8 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩

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