fix(Tabs): provide idSuffix as string

[0x0dr1y]

Fixes #14

Fixes an issue where the idSuffix was provided as a function instead of a string to the child components. This lead to broken ids being rendered in the DOM. I don't see a reason why this should be passed as a func, so i reckon this is the easiest way to solve the issue.

[mtorromeo]

Hi,
thanks for the report.

The change is incomplete as we either need to support optionally passing a ref or getter, or we need to also change the declaration of TabsProvide to properly declare that it is not supported (just string instead of MaybeRefOrGetter<string>).

Fixing support MaybeRefOrGetter<string> should be just a case of changing String(idSuffix) to toValue(idSuffix) probably.