fix tests, add test for offer update

src/views/OfferDetailsView.vue

@@ -36,6 +36,7 @@
       class="block w-full rounded border border-slate-400 mb-2 px-3 py-2"
       placeholder="What was offered"
       v-model="itemDescription"
+      data-testId="itemDescription"
     />
     <div class="flex flex-row justify-center">
       <span
@@ -54,6 +55,7 @@
         type="number"
         class="border border-r-0 border-slate-400 px-2 py-2 text-center w-20"
         v-model="amountInput"
+        data-testId="inputOfferAmount"
       />
       <div
         class="rounded-r border border-slate-400 bg-slate-200 px-4 py-2"
@@ -173,7 +175,6 @@
 </template>
 
 <script lang="ts">
-import { DateTime } from "luxon";
 import { Component, Vue } from "vue-facing-decorator";
 import { Router } from "vue-router";