Scroll to Top floating button

**Is your feature request related to a problem? Please describe.**
There should a button to scroll to the top whenever the user scrolls down on the website.

**Describe the solution you'd like**
I'll add a button that will be visible when the user scrolls down and clicking on that button will scroll the user to the top of the site making it user easy to navigate the site.

**Describe alternatives you've considered**
A floating button or a fixed button at the last of the screen near the footer.

**Additional context**
Please assign this feature request to me.

**Same like this Screen shot**