Fix footer text by removing the trailing period for consistency in messaging.

components/Footer.tsx

@@ -23,7 +23,7 @@ const Footer: React.FC<FooterProps> = ({ onPrivacyClick }) => {
               </span>
             </div>
             <p className="text-sm text-gray-400 max-w-xs">
-              Making learning inevitable through smart blocking and spaced repetition.
+              Making learning inevitable through smart blocking and spaced repetition
             </p>
           </div>