Add ability to close actions on the outside click

Raised MR for hiding dropdown when clicking outside dropdown

Looks good to me! Thank you!

Done some changes in dropdown JS.

@Sandeep Sanwale thank you for your patch.
In this ticket it is enough to get just `close on outside click`

In your patch i see things which we need to discuss first. like:
`e.stopPropagation();`

Please feel free to open new issue with that javascript optimisations.

Merged, thanks!
And for the JS improvements, feel free to open a new issue as @finnsky says so those specific suggestions can be discussed without blocking this :)

Automatically closed - issue fixed for 2 weeks with no activity.