Support shortcuts for date of delivery input (1 day, 5 months, 1 year, etc.)

[ibsule]

Feature Request

Currently, users must input specific dates for the "date of delivery" field. It would be more user-friendly to allow users to enter shortcuts such as "1 day", "5 months", or "1 year" which the system would then automatically convert to the correct date.

Proposed Solution:

• Parse input for time-based shortcuts like "1 day", "5 months", "1 year"
• Convert these shortcuts into the corresponding calendar date
• Ensure input validation and clear user feedback for invalid or ambiguous shortcuts

Benefits:

• Makes the input process faster and more intuitive
• Reduces input errors related to date calculation

Acceptance Criteria:

• Users can enter shortcuts in the date of delivery field
• The system accurately calculates and displays the correct date based on the shortcut
• Proper validation and error messages for incorrect input

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This enhancement improves the user experience by making date inputs flexible and less error-prone.