Summary:
Exposing a `<Sheet>` component to plugins. This allows plugins to create sheets, by returning something like this from their render function:
```js
return <div>
contents of my plugin
<Sheet>{() => <div>content of my sheet</div>}
</div>
```
Reviewed By: passy
Differential Revision: D13597251
fbshipit-source-id: 9da6ba6d2036243ddd2d05b73d392bf24be8d375
Summary:
The sheet was only used for the bug-reporter before and we had an explicit boolean flag in the redux store to keep track if the bug reporter is shown.
Changing this it an `activeSheet` property, which allows us to show arbitrary sheets, while making sure to only show one at a time.
Reviewed By: jknoxville
Differential Revision: D13516985
fbshipit-source-id: 3e83f719e2b61d0b2229268ebfdc910123b403d2
Summary: this moves the `Sheet` into its own component, so it can be reused for other places than the bug reporter.
Reviewed By: passy
Differential Revision: D13468275
fbshipit-source-id: 5f6d07a54dda078bd08a4c4cd31a41c61b58a76f
