ui: tapeRestore: make window non-resizable

While it would be nice to be able to resize that window for more
snapshots/datastores in view, this would need quite some reworking on the
input panel side. So for now, disable resizing of that window, otherwise
the grids look weird as they only scale horizontally but not vertically.

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

www/tape/window/TapeRestore.js

@@ -11,6 +11,7 @@ Ext.define('PBS.TapeManagement.TapeRestoreWindow', {
     url: '/api2/extjs/tape/restore',
     method: 'POST',
 
+    resizable: false,
     modal: true,
 
     mediaset: undefined,