Implement Auth provide user info

frontend/src/app/[locale]/account/validate.ts

@@ -0,0 +1,19 @@
+function isValidEmail(email: string) {
+  const validRegex =
+    /^[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+@[a-zA-Z0-9-]+(?:\.[a-zA-Z0-9-]+)*$/;
+  if (email.match(validRegex)) {
+    return true;
+  } else {
+    return false;
+  }
+}
+
+function isValidPassword(password: string) {
+  if (password.length > 7) {
+    return true;
+  } else {
+    return false;
+  }
+}
+
+export { isValidEmail, isValidPassword };