Increase previous tools margin

Adjusted the previous tools section spacing by adding top margin to push it further below the active tools on the landing page. Updated the container from mt-8 to mt-14 for better vertical separation.

X-Lovable-Edit-ID: edt-65be2817-8f11-4491-914d-bb2f4cc728c2

Author: lovable-dev[bot]

src/pages/Index.tsx

@@ -73,7 +73,7 @@ const Index = () => {
           </div>
 
           {/* Previous Tools */}
-          <div className="mt-8">
+          <div className="mt-14">
             <h2 className="font-mono-display text-sm font-medium tracking-widest text-foreground/30 drop-shadow-sm">
               previous tools
             </h2>