Summary:
Setting the module extension to .tsx overrode the defaults, meaning .js files were no longer being checked when imported.
This adds the defaults back to the extensions to be checked, including `.js`
It does seem to cause errors importing `.tsx` at the moment, but there aren't many so I've just $FlowFixMe'd them for now.
https://flow.org/en/docs/config/options/#toc-module-file-ext-string
Reviewed By: passy
Differential Revision: D16333800
fbshipit-source-id: 7bea92c038048234b4f634704f71c15d79ab3c63
Summary: Adds close button to the dialog box which appears while exporting a flipper trace. To implement this I had to first see what is the bottle neck of the export process. The major bottle neck turned out to be the serialization step. So to make the export process interruptible, I have put in a call `await idler.idle()` which resolves when the main thread is idle. I have also added the tests for the idler.
Reviewed By: passy
Differential Revision: D16183582
fbshipit-source-id: 4ec0c985e216fd9d41e91cdcd8b4cca66d2cb04d
