Magento 2 Widget for all themes

My Magento 2 website theme has a contact page that is created via widget. The issue I am experiencing is that the whenever I change the theme I can to create a new widget (that is dependent on that theme) to make my contact page work. Is it possible to create a widget (maybe hard code it) that is not depend on theme. I just want my contact page to work as I have many stores with different theme and 1 contact page.

Budget - $50 NZD