Update TanStack DB tagline to reflect client-first API store positioning

Update the tagline and description to align with the messaging from the 0.5 release blog post, emphasizing TanStack DB as "The reactive client-first store for your API" with query-driven sync capabilities.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: KyleAMathews

src/libraries/db.tsx

@@ -14,8 +14,8 @@ export const dbProject = {
   name: 'TanStack DB',
   cardStyles: `shadow-xl shadow-orange-700/20 dark:shadow-lg dark:shadow-orange-500/20 text-orange-500 dark:text-orange-400 border-2 border-transparent hover:border-current`,
   to: '/db',
-  tagline: `A reactive client store for building super fast apps on sync`,
-  description: `TanStack DB extends TanStack Query with collections, live queries and optimistic mutations that keep your UI reactive, consistent and blazing fast 🔥`,
+  tagline: `The reactive client-first store for your API`,
+  description: `TanStack DB gives you a reactive, client-first store for your API data with collections, live queries and optimistic mutations that keep your UI reactive, consistent and blazing fast 🔥`,
   ogImage: 'https://github.com/tanstack/db/raw/main/media/repo-header.png',
   badge: 'beta',
   bgStyle: `bg-orange-700`,