Typo in simple F7 template

@nolimits4web
Just fyi.

I just did a quick test creating an app (pwa, coref7, no fonts/icons) using the new vite-bundler:

After npm install I ran npm build, but it produced an invalid html, because in the source file there’s a space missing:

<div id="app"class="theme-dark"></div>

between “app” and “class”

Thanks, it is fixed now in CLI 5.0.2