* add new query param to hide specific languages in top languages card
* [top-langs] add function to clean out the provided lang name
* [top-langs] rename 'hide_lang' => 'hide', refactor logic for parsing the list of provided languages to hide
* [top-langs] take list of languages to hide, as a json array
* chore: minor changes
* docs: added docs for hide lang
Co-authored-by: anuraghazra <hazru.anurag@gmail.com>