For #2034 - "Knowledge map can't be scrolled" - this is the initial fix to allow user to scroll horizontally if the contents of the map is more than its container's width.
Remove codes to set the `overflow` CSS attribute of the map container and set it's value to `auto`.
Merge pull request #2101 from cpauya/hotfix/2034-Knowledge-map-cant-be-scrolled

Hotfix/2034 knowledge map cant be scrolled