Add auto scroll on public events page

[dilpreetsio]

• feature request

Current behavior:
If a tab is selected form the side bar the does not scroll to the particular section.

Expected behavior:
If a tab is clicked from the side bar the page should auto scroll to the particular section eg.
After clicking Speakers the page should scroll to the speakers section.

Reference : https://eventyay.com/e/5642d9a1/