fix(numfmt): align error messages for suffixes #9887
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In #9752 several failures are caused by the error messages not matching GNU.
Some examples:
This aligns the error message by adding a localization parameter for the incorrect suffix. It also checks whether the number would be valid if we were to remove the suffix, and returns a suffix error rather than a number error in those cases.
This lets the user know which specific suffix is invalid. If they for instance enter "5MS" it will tell them that the "S" is the invalid suffix, not the "M".