feat: datetime, add ability to customize internal aria labels

[iamandersonp]

Prerequisites

• I have read the Contributing Guidelines.
• I agree to follow the Code of Conduct.
• I have searched for existing issues that already include this feature request, without success.

Describe the Feature Request

Add internationalizatoion aria-label support for the previous and next button of the calendar view in the ion-datetime component

Describe the Use Case

The previous and Next butons of the calendar view in the ion-datetime doesnt have a correct aria-label.

#25845 will add the aria-label but is hardcoded in english.

The screen readers won't read it correctly in others languages, the correct functionality would be to use the locale to determine the correct aria-label or maybe to have te flexibility to have its own previous and next labels and use it as aria-label

Describe Preferred Solution

use the locale to determine the correct aria-label or to have its own previous and next labels and use it as aria-label

Describe Alternatives

No response

Related Code

No response

Additional Information

No response