Improve Editor related bugs and add multiline md (#1507)

Improve Editor related bugs and add multiline md (#1507)

* remove shift from editor hotkeys

* fix inline markdown not working

* add block md parser - WIP

* emojify and linkify text without react-parser

* no need to sanitize text when emojify

* parse block markdown in editor output - WIP

* add inline parser option in block md parser

* improve codeblock regex

* ignore html tag when parsing inline md in block md

* add list markdown rule in block parser

* re-generate block markdown on edit

* change copy from inline markdown to markdown

* fix trim reply from body regex

* fix jumbo emoji in reply message

* fix broken list regex in block markdown

* enable markdown by defualt