Fix export bug of missing config files

[skyfly18]

fixed #1201

[f3l1x]

Why do you need phpstan config and others? I thought you missing TS type definition (*.d.ts) files.

[skyfly18]

I don't need phpstan config and ruleset.xml

[f3l1x]

Why do you need rollup.config.js and others? It's only for this repository. I don't see the point. Tell me your motivation.

[skyfly18]

package.json because Dependency Management.

[f3l1x]

And others?

[skyfly18]

To create the Datagrid JavaScript files, we use npm install %localpath%. For this, we use the tsconfig and rollup.config files. Therefore, it would be helpful if the three files package.json, tsconfig.json and rollup.config.js remain in the export.

[f3l1x]

Why do you need these files?

rollup.config.js export-ignore
tsconfig.json export-ignore

[radimvaculik]

@skyfly18 ping.