Type errors on IFlags

[jhoermann]

I tried fixing the types of flagsmith-vue in jhoermann/flagsmith-vue#254 but there are some issues that I'm getting from the flagsmith types:

Since the flags now also allow the type to be Record<string, any> it can't be passed to the IFlags type which is string only.
Strangely your type-checker doesn't seem to notice it - maybe its some sort setting.

Maybe it can be resolved with something like IFlags<F extends Record<string, any> ? keyof F : F>?