`add -s` command accepts invalid emails.

[nus-se-script]

• Description:
  The add -s command supports invalid emails.

• Steps to Reproduce:

  1. add -s n/John Doe p/98765432 e/johnd@example com/companyA t/friends t/owesMoney pro/rice pro/bread

• Expected Result:
  The supplier should not be added to the database as the email is invalid.

• Actual Result:
  The supplier was successfully added to the database.

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_{[original: nus-cs2103-AY2425S1/pe-interim#754] [original labels: type.FeatureFlaw severity.Low]}

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Team's Response

No details provided by team.

Duplicate status (if any):

Duplicate of #1797