fix password repetition check

frontend/src/Register.tsx

@@ -49,6 +49,7 @@ export const Register = () => {
       setPasswordHint("");
     } else setPasswordHint("passwords do not match");
   }
+  useEffect(() => passwordCheck(), [passwordr]);
 
   async function handleSubmit(e: FormEvent) {
     e.preventDefault();
@@ -150,7 +151,6 @@ export const Register = () => {
               />
             </div>
             <div className="field">
-              <label className="label">repeat password</label>
               <input
                 className={"input" + (passwordHint ? " is-danger" : "")}
                 type={"password"}
@@ -163,7 +163,6 @@ export const Register = () => {
                 onChange={(evt) => {
                   setError("");
                   setPasswordr(evt.target.value);
-                  passwordCheck();
                 }}
               />
               <p className={"help is-danger"}>{passwordHint}</p>