Update Vue School banner copy (#1262)

Author: nicodevs

packages/docs/.vitepress/components/Banner.vue

@@ -13,10 +13,10 @@
     <div class="vs-core">
       <div class="vs-slogan">
         <div class="vs-slogan-title">
-          Get up to <strong>40% off</strong> your Vue School Subscription
+          Extended for <strong>48 hours!</strong>
         </div>
         <div class="vs-slogan-subtitle">
-          Time Limited Offer
+          Get up to 40% off your Vue School Subscription
         </div>
       </div>
       <div class="vs-button">
@@ -39,7 +39,9 @@ export default {
     }
   },
   mounted () {
-    this.isVisible = !localStorage.getItem('VS_FW_22')
+    const now = new Date()
+    const end = new Date('2022-05-04T00:00:00+02:00')
+    this.isVisible = !localStorage.getItem('VS_FW_22') && (now < end)
     if (this.isVisible) document.body.classList.add('has-top-banner')
   },
   methods: {