fix(react): small TypeScript fixes

Author: sensorario

react/useFormStatus/src/App.tsx

@@ -6,7 +6,7 @@ const Componente = () => {
   return <button type="submit">FORM IS {pending || "NOT"} PENDING</button>;
 };
 
-function pausa(ms) {
+function pausa(ms: number | undefined) {
   return new Promise((resolve) => setTimeout(resolve, ms));
 }
 
@@ -18,7 +18,7 @@ function App() {
   return (
     <div className="sensorario-container light">
       <h2>useFormStatus()</h2>
-      <form action={action}>
+      <form onSubmit={(e) => { e.preventDefault(); action(); }}>
         <Componente />
       </form>
     </div>