gui: masks for: adding recovery and removals

Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>

www/config/TfaView.js

@@ -161,6 +161,7 @@ Ext.define('PBS.config.TfaView', {
 	    }
 
 	    try {
+		me.getView().mask(gettext('Please wait...'), 'x-mask-loading');
 		await PBS.Async.api2({
 		    url: `/api2/extjs/access/tfa/${record.id}`,
 		    method: 'DELETE',
@@ -169,7 +170,9 @@ Ext.define('PBS.config.TfaView', {
 		me.reload();
 	    } catch (error) {
 		Ext.Msg.alert(gettext('Error'), error);
-	    }
+	    } finally {
+		me.getView().unmask();
+            }
 	},
     },