change the "give" action on contact page to use dialog box

src/components/OfferDialog.vue

@@ -43,7 +43,7 @@
         <input
           type="text"
           class="w-full border border-slate-400 px-2 py-2 rounded-r"
-          :placeholder="'Date, eg. ' + new Date().toISOString().slice(0, 10)"
+          :placeholder="datePlaceholder()"
           v-model="expirationDateInput"
         />
       </div>
@@ -69,6 +69,7 @@
 </template>
 
 <script lang="ts">
+import { DateTime } from "luxon";
 import { Vue, Component, Prop } from "vue-facing-decorator";
 
 import { NotificationIface } from "@/constants/app";
@@ -143,6 +144,12 @@ export default class OfferDialog extends Vue {
     )}`;
   }
 
+  datePlaceholder() {
+    return (
+      "Date, eg. " + DateTime.now().plus({ month: 1 }).toISO().slice(0, 10)
+    );
+  }
+
   cancel() {
     this.close();
     this.eraseValues();