Support for dummy data for npm run dev

[saugatmaharjan]

Goals

1. let users to pass dummy data from preview while developing template

Background

can't use npm run dev to preview while components props are dynamic, had to create own server

Proposal

enable users to create a .js or .json file with same name as template and load data to use as props for the template

[shellscape]

It's not documented but you can use a defaultPreviewData property on your exported template. check out the source for the example templates, there are a few.

working on a replacement for the preview/dev server that will make that a lot easier in the future

[Hainesy]

Has this changed? I can't find defaultPreviewData anywhere, and it doesn't work for me.

[Hainesy]

Found it's changed to PreviewProps