* Add binary_search_insertion and binary_search_edge code in javascript and typescript.
* code style fix: in FOR loop, use CONST will be nicer.
* fix: Code Style
* Change ==/!= to ===/!==
* Create const by default, change to let if necessary.
* Update import files
* Update codes/javascript/chapter_searching/binary_search_edge.js
Co-authored-by: Justin Tse <xiefahit@gmail.com>
* style fix: Delete unnecessary defined type
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Co-authored-by: Justin Tse <xiefahit@gmail.com>