make index-app ready for i18n

Created by: GVogeler

index app could use more i18n methods: e.g. https://github.com/icaruseu/mom-ca/blob/master/my/XRX/src/mom/app/index/widget/index.widget.xml#L627 https://github.com/icaruseu/mom-ca/blob/master/my/XRX/src/mom/app/index/widget/index.widget.xml#L647