Add vite-plugin, jsconfig, dev-mode runtime to JS templates

[IanVS]

This gets all the non-typescript templates into good shape.

• Adds jsconfig.json to them all, customized slightly for svelte, sveltekit, and vue to respect their special filetypes.
• Adds vite-env.d.ts files to the js templates (for autocompletion support)
• Changes package.json to package.json.tmpl to support development-mode wails runtime
• Adds wails runtime vite plugin to javascript templates

Also:

• Removes package-lock.json from the sveltekit templates. New projects should create their own package-lock files, not use an old one from the template
• Removes duplicated static assets from sveltekit template.

[fbbdev]

@IanVS The JS react template has a tsconfig instead of a jsconfig. Just wanted to make sure this is intentional.

[IanVS]

you're right it should be jsconfig, good catch.