Offer option to sign in before doing initial set up

One thing that I always felt was off with Sync for Reddit and now Lemmy is that you go through initial set up before you even get a chance to sign in. After signing in, it asks you to do the initial set up again, otherwise it resets to default.

Obviously a one time issue, but I would love to have the option to first sign in when you launch the app then proceed with initial set up, and then, if you sign in later, rather than running setup again or going back to default, give the option to just keep the settings you already have entered.

I know there are probably a lot of other things to fix with moving over to Lemmy right now so low priority, but just a thought on an improvement that could be made. So glad to have sync back, worth every penny of Ultra