[FEATURE REQUEST] Bottom to top Scrool down button

## Description

**Is your feature request related to a problem? Please describe.**
this feature is requested to improve user exprience

**Describe the solution you'd like**
I want to add bottom to top scroll button so that user does not need to scrool by himself to top .
he just need to click on that button and he will be taken to top of page.

## Additional Information

**Context**
it will be done using htm,css and javascript