Don't export TS types from JS files

[chandlerprall]

Summary

Fixes #4595 by removing EuiPageSideBarProps and EuiPageTemplateProps exports from src/components/index.js as they are TypeScript definitions and removed from the transpiled code.

I confirmed with BABEL_MODULES=false yarn webpack --config=src/webpack.config.js that these are the only two such exports.

[cchaos]

🙇‍♀️ Thank you!

[orhantoy]

There's something similar here (EuiSideNavProps):

eui/src/components/index.js

Line 297 in 8869cd1

export { EuiSideNav, EuiSideNavProps } from './side_nav';

[kibanamachine]

Preview documentation changes for this PR: https://eui.elastic.co/pr_4597/

[chandlerprall]

Thanks @orhantoy ; I'll remove it as well, and am looking into why webpack warned/failed on the other 2 exported types but not EuiSideNavProps. Is this one causing a build failure for you?

[orhantoy]

@chandlerprall No build failure, just mentioning it here because I also ran into the issue with EuiPageSideBarProps, and while investigating I noticed EuiSideNavProps.

[chandlerprall]

why webpack warned/failed on the other 2 exported types but not EuiSideNavProps

side_nav/index.ts exports * from whereas page/index.ts has explicit exports, looks like webpack only inspects one layer deep when issuing that warning.