Add volum mode options in create VM volume tab (#209)

* add volume mode option for non-longhorn volume

Signed-off-by: Andy Lee <andy.lee@suse.com>

* fix default storage class in create VM page

Signed-off-by: Andy Lee <andy.lee@suse.com>

---------

Signed-off-by: Andy Lee <andy.lee@suse.com>

pkg/harvester/edit/kubevirt.io.virtualmachine/VirtualMachineVolume/index.vue

@@ -7,8 +7,7 @@ import UnitInput from '@shell/components/form/UnitInput';
 import { LabeledInput } from '@components/Form/LabeledInput';
 import LabeledSelect from '@shell/components/form/LabeledSelect';
 import ModalWithCard from '@shell/components/ModalWithCard';
-
-import { PVC } from '@shell/config/types';
+import { PVC, STORAGE_CLASS } from '@shell/config/types';
 import { clone } from '@shell/utils/object';
 import { ucFirst, randomStr } from '@shell/utils/string';
 import { removeObject } from '@shell/utils/array';
@@ -117,6 +116,12 @@ export default {
       return this.mode === _CREATE;
     },
 
+    defaultStorageClass() {
+      const defaultStorage = this.$store.getters['harvester/all'](STORAGE_CLASS).find((sc) => sc.isDefault);
+
+      return defaultStorage;
+    },
+
     showVolumeTip() {
       const imageName = this.getImageDisplayName(this.rows[0]?.image);