Fixed the width in mobile devices in COVID-19 Reports page

[ArnabBCA]

Description

Fixed the width in mobile devices in COVID-19 Reports page

Motivation and Context

Previous it was only using 50% of width in mobile devices Now it is using 100% in mobile devices

671

Screenshots (if appropriate):

Before

After

Types of changes

• [x] Bug fix (#671)

Checklist:

• [x] My code follows the code style of this project.