chore(app): added migration info bar

src/components/app/MigrationInfo.vue

@@ -0,0 +1,37 @@
+<template>
+  <div class="migrate-info">
+    <i18n-t keypath="migrate-info.line-1" for="migrate-info">
+      <a href="https://pojazdownik-td2.spythere.eu/" target="_blank">{{ $t('migrate-info.link') }}</a>
+    </i18n-t>
+  </div>
+</template>
+
+<script setup lang="ts"></script>
+
+<style lang="scss" scoped>
+.migrate-info {
+  position: fixed;
+  z-index: 100;
+  bottom: 0;
+  left: 0;
+
+  padding: 0.25em;
+  text-align: center;
+
+  width: 100%;
+  background-color: var(--accentColor);
+  color: black;
+  font-weight: bold;
+
+  font-size: 1.1em;
+}
+
+a {
+  color: black;
+  text-decoration: underline;
+
+  &:hover {
+    color: black;
+  }
+}
+</style>