[v2] fix: Legacy storage

[krizzu]

Summary:

Fixes

• Legacy multi get/set functions
• Drop storage throwing empty error

Chores

• Updated Mobile example

Test Plan:

Green CI.

[kennetpostigo]

@krizzu Is this released? I got the latest rc and i'm getting this as a warning:

And my app doesn't load at all. I get a white screen. Is the issue perhaps not fixed?

[kennetpostigo]

As soon as I comment out storage usage:

let data = storage.get('data');

it works again for me.