Supported formatting APIs from Intl

[amannn]

Is your feature request related to a problem? Please describe.

We currently support a subset of formatting APIs from Intl:

Intl.DateTimeFormat

• format
• formatRange (feat: Add format.dateTimeRange #769)
• formatToParts
• formatRangeToParts

Intl.NumberFormat

• format
• formatRange (see previous discussion in Add support for number range formatting #540)
• formatToParts
• formatRangeToParts

Intl.ListFormat

• format
• formatToParts

Intl.RelativeTimeFormat

• format
• formatToParts

Describe the solution you'd like

There are valid use cases for every API, potentially we could support all.

For now, we'll add APIs as necessary and reported by users.

This will increase bundle size though, we should evaluate how much. Potentially we could also split useFormatter into separate hooks like const dateTimeFormat = useDateTimeFormatter(), const relativeTimeFormat = useRelativeTimeFormat(), const numberFormat = useNumberFormatter() (could be introduced alongside useFormatter for a longer transition period).

Also note that only a subset of these formatting APIs is supported by ICU.

Describe alternatives you've considered

Supporting only a subset, e.g. none of the ToParts variants and asking users to implement this in userland.

There are even more APIs from Intl (not necessarily related to formatting), so we'll likely not wrap every single API.