Add a multi-step form template

What does this MR do and why?

Add a multi-step form template

MR acceptance checklist

Please evaluate this MR against the MR acceptance checklist. It helps you analyze changes to reduce risks in quality, performance, reliability, security, and maintainability.

Screenshots or screen recordings

How to set up and validate locally

1. Run Storybook yarn storybook:start
2. Open http://localhost:9002/?path=/story/vue-shared-multi-step-form-template--default&args=stepsNumber:0

#499697 (closed)