play editor features - Githubissues

`@todo`

[ ] feature: copy the line (shift + control + D)
[ ] feature: move line (shift + control + arrows)
[ ] feature: find in this file/all files (control + F/ shift + control + F)
[ ] feature: create a string/array/object (double click and write single or double quote/open bracket, curly brace..)
[ ] feature: collapsing parts of the code (long functions etc.)

editor candies (copy selected lines, move lines, find in this file/all files) not IDE, but EDITOR (only ethereum editor)