Implement per currency base price in table rate shipping

[ryanmitchell]

This PR changes the ManageShippingRates component to support a base price for each currency enabled on your store, not just the default price.

Closes #2063

[alecritson]

Thanks @ryanmitchell I wasn't sure if this is ready yet or you was aware of the failing tests?

[ryanmitchell]

@alecritson yeah working on it, I need to update to target filament 4

[ryanmitchell]

@alecritson the current failures in Laravel 11 are coming from kalnoy/nestedset v6.0.8+ which adds whenBooted() even though its not supported in Laravel 11.

I've added a shim to get around it.

[alecritson]

I think the Filament/Resources/ShippingZoneResource/Pages/ManageShippingRates.php table needs updating as currently it will only attempt to format the first price, meaning you get apparently duplicates.

[ryanmitchell]

I've updated it to only show the default currency price