No option to choose measuring unit

[SzyVsSi]

Hi there,

I discovered your repository, it's great but as an European who'd like to use the app, I would love to be able to use (kilo)grams etc instead of pounds.

I'd make a pull request myself but there's quite a lot of necessities required just to get the app running locally, hence I make an issue :)

Keep it up!

Edit: I exaggerated, there aren't a lot of necessities, but the firebase requirement is quite a blocker 😅

[MAHarby]

I second this