* Unify name of ReactNode type in document
* Lowser all string type name
* Lowercase all number type name
* Lowercase all boolean type name
* Unify array type
* Lowercase all object type name
* Unify mutilple types
+ add `getSuggestionContainer` callback function, which allow users modify the
container element of suggestions dropdown.
+ the suggestions dropdown will mount on `document.body` defaultly, instead of
on editor.
+ close#3588
Wei Zhu
陆离
Bruce Mitchener
ddcat1115
Benjy Cui
afc163