chore(app): added info about migration to the new domain for the old version of the app

src/components/App/AppNewDomainInfo.vue

@@ -0,0 +1,37 @@
+<template>
+  <div class="app-domain-info">
+    <div>
+      <img src="/images/icon-loading.svg" alt="loading" height="200" />
+      <h1><span class="text--primary">Aplikacja</span> została przeniesiona na nową domenę!</h1>
+      <h1><span class="text--primary">This app</span> has been moved to a new domain!</h1>
+
+      <div style="margin-top: 1em">
+        <a :href="newLink">Nowy link dla obecnego adresu / New link to the current address</a>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script lang="ts" setup>
+import { computed } from 'vue';
+
+const newLink = computed(() => {
+  return 'https://stacjownik-td2.spythere.eu' + location.pathname + location.search;
+});
+</script>
+
+<style lang="scss" scoped>
+.app-domain-info {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  text-align: center;
+  min-height: 100vh;
+  color: white;
+}
+
+a {
+  font-size: 1.35em;
+  text-decoration: underline;
+}
+</style>