Add manifest.json file to public directory

[reload-mb]

It would be useful to have the following manifest.json in the public folder in order to use as a "standalone" app on the phone ( without attaching to existing chrome tabs).

• I've left the icons path empty to be customized as per your likings
• the colors follow app base color and accent
• I've decided for the "standalone" ui because the phone's back button is sufficient to navigate the app

More info at: https://web.dev/add-manifest/

Thank you for your wonderful work.

manifest.json.zip