Error Message Mismatch with Pattern Validation Rules

[sourcery-ai]

The current error message for pattern validation does not accurately reflect the allowed characters. The validation pattern permits hyphens, apostrophes, and periods, but these characters are not mentioned in the error message. This discrepancy can lead to confusion for users who are trying to understand why their input is being rejected.

Suggested Fix:
Update the error message to include all valid characters as per the pattern validation rules. This will ensure that users receive accurate feedback when their input does not meet the validation criteria.

Action Items:

1. Review the current pattern validation rules to confirm all allowed characters.
2. Update the error message to include hyphens, apostrophes, and periods.
3. Test the updated error message to ensure it accurately reflects the validation rules and provides clear guidance to users.

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I created this issue for @chrisfalaska from #16 (comment).

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