ui: window/SyncJobEdit: disable autoSelect for remote datastore

when changin the remote, there is a high chance that there are different
datastores, and if a user does not pay attention, now the first store
of the new remote is selected, instead of the one with the same name

disable autoSelect and let the user manually select a remote datastore

Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>

www/window/SyncJobEdit.js

@@ -182,6 +182,7 @@ Ext.define('PBS.window.SyncJobEdit', {
 		fieldLabel: gettext('Source Datastore'),
 		xtype: 'pbsRemoteStoreSelector',
 		allowBlank: false,
+		autoSelect: false,
 		name: 'remote-store',
 		disabled: true,
 	    },