fix: replace deprecated lucide Github icon with inline SVG

Use Simple Icons SVG for GitHub icon to avoid lucide-react deprecation
warning. Update author name to "Khuong Dev" with link to khuong.dev.

Author: lamngockhuong

apps/web/src/components/layout/sidebar-footer.tsx

@@ -1,18 +1,36 @@
-import { ExternalLink, Github } from 'lucide-react'
+import { ExternalLink } from 'lucide-react'
+
+function GitHubIcon({ className }: { className?: string }) {
+  return (
+    <svg viewBox="0 0 24 24" fill="currentColor" className={className}>
+      <path d="M12 .297c-6.63 0-12 5.373-12 12 0 5.303 3.438 9.8 8.205 11.385.6.113.82-.258.82-.577 0-.285-.01-1.04-.015-2.04-3.338.724-4.042-1.61-4.042-1.61C4.422 18.07 3.633 17.7 3.633 17.7c-1.087-.744.084-.729.084-.729 1.205.084 1.838 1.236 1.838 1.236 1.07 1.835 2.809 1.305 3.495.998.108-.776.417-1.305.76-1.605-2.665-.3-5.466-1.332-5.466-5.93 0-1.31.465-2.38 1.235-3.22-.135-.303-.54-1.523.105-3.176 0 0 1.005-.322 3.3 1.23.96-.267 1.98-.399 3-.405 1.02.006 2.04.138 3 .405 2.28-1.552 3.285-1.23 3.285-1.23.645 1.653.24 2.873.12 3.176.765.84 1.23 1.91 1.23 3.22 0 4.61-2.805 5.625-5.475 5.92.42.36.81 1.096.81 2.22 0 1.606-.015 2.896-.015 3.286 0 .315.21.69.825.57C20.565 22.092 24 17.592 24 12.297c0-6.627-5.373-12-12-12" />
+    </svg>
+  )
+}
 
 export function SidebarFooter() {
   return (
     <div className="border-t pt-3 space-y-1">
       <p className="text-xs text-muted-foreground">DBSight v{__APP_VERSION__}</p>
-      <p className="text-xs text-muted-foreground">Built by Khuong Lam</p>
+      <p className="text-xs text-muted-foreground">
+        Built by{' '}
+        <a
+          href="https://khuong.dev"
+          target="_blank"
+          rel="noopener noreferrer"
+          className="underline hover:text-foreground transition-colors"
+        >
+          Khuong Dev
+        </a>
+      </p>
       <div className="flex items-center gap-2">
         <a
           href="https://github.com/lamngockhuong/dbsight"
           target="_blank"
           rel="noopener noreferrer"
           className="text-muted-foreground hover:text-foreground transition-colors"
         >
-          <Github className="h-4 w-4" />
+          <GitHubIcon className="h-4 w-4" />
         </a>
         <a
           href="https://dbsight.khuong.dev"