fixed lint issue

Author: yuhengshs

examples/vue/src/pages/ui/components/authenticator/sign-up-with-attributes/index.vue

@@ -21,8 +21,6 @@ Amplify.configure(aws_exports);
         placeholder="Zone Info"
         name="zoneinfo"
         :hideLabel="false"
-        :required="true"
-        :disabled="false"
       />
     </template>
     <template v-slot="{ user, signOut }">

packages/vue/scripts/copyCSS.d.ts

@@ -3,6 +3,7 @@
   "compilerOptions": {
     "noImplicitAny": false,
     "skipLibCheck": true,
+    "strictNullChecks": false,
     "types": [
       "node",
       "jest",