Add title component

frontend/src/components/Title.tsx

+type Props = {
+  children: string
+}
+
+export const Title = ({ children }: Props) => {
+  return (
+    <div className="mb-4 text-4xl font-extrabold leading-none tracking-tight text-gray-900 md:text-5xl lg:text-6xl dark:text-white">
+      {children}
+    </div>
+  )
+}
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