Use dashboard domain as default and not [0]

dashboard/src/components/AppRestoreDialog.vue

@@ -2,7 +2,7 @@
 
 // for restore from archive or clone !
 
-import { ref, useTemplateRef, computed } from 'vue';
+import { ref, useTemplateRef, computed, inject } from 'vue';
 import { InputGroup, FormGroup, TextInput, SingleSelect, Dialog } from '@cloudron/pankow';
 import { prettyLongDate } from '@cloudron/pankow/utils';
 import PortBindings from  '../components/PortBindings.vue';
@@ -14,6 +14,7 @@ const appsModel = AppsModel.create();
 const archivesModel = ArchivesModel.create();
 const domainsModel = DomainsModel.create();
 
+const dashboardDomain = inject('dashboardDomain');
 const appId = ref(null);
 const dialog = useTemplateRef('dialog');
 const restoreArchive = ref({});
@@ -119,7 +120,7 @@ defineExpose({
 
     const app = archive.appConfig || {
       subdomain: '',
-      domain: domains.value[0].domain,
+      domain: dashboardDomain.value,
       secondaryDomains: [],
       portBindings: {}
     }; // pre-8.2 backups do not have appConfig
@@ -129,7 +130,7 @@ defineExpose({
 
     restoreLocation.value = app.subdomain;
     const d = domains.value.find(function (d) { return app.domain === d.domain; });
-    restoreDomain.value = d ? d.domain : domains.value[0].domain; // try to pre-select the app's domain
+    restoreDomain.value = d ? d.domain : dashboardDomain.value; // try to pre-select the app's domain
     restoreSecondaryDomains.value = {};
     needsOverwrite.value = false;
     restoreArchive.value = archive;