Use dashboard domain as default and not [0]

dashboard/src/components/app/Location.vue

@@ -1,6 +1,6 @@
 <script setup>
 
-import { ref, onMounted, computed } from 'vue';
+import { ref, onMounted, computed, inject } from 'vue';
 import { Button, SingleSelect, InputGroup, FormGroup, TextInput, Checkbox } from '@cloudron/pankow';
 import { isValidDomain } from '@cloudron/pankow/utils';
 import { ISTATES } from '../../constants.js';
@@ -13,6 +13,7 @@ const props = defineProps([ 'app' ]);
 const appsModel = AppsModel.create();
 const domainsModel = DomainsModel.create();
 
+const dashboardDomain = inject('dashboardDomain');
 const domains = ref([]);
 const busy = ref(false);
 const errorMessage = ref('');
@@ -38,7 +39,7 @@ function isNoopOrManual(domain) {
 
 function onAddAlias() {
   aliases.value.push({
-    domain: domains.value[0].domain,
+    domain: dashboardDomain.value,
     subdomain: ''
   });
 }
@@ -49,7 +50,7 @@ function onRemoveAlias(index) {
 
 function onAddRedirect() {
   redirects.value.push({
-    domain: domains.value[0].domain,
+    domain: dashboardDomain.value,
     subdomain: ''
   });
 }