Updated 'getName' naming pattern requirements

[QuinnGT]

Issue: #70
Title: Update getName Function to Adhere to Naming Requirements

Summary:

Updated the getName function in utils.ts to ensure generated names adhere to the new naming requirements.

Changes:

1. Converted the generated name to lowercase.
2. Removed any characters that are not a-z, 0-9, or hyphen.
3. Trimmed hyphens from the start and end of the name.
4. Ensured the name's length is between 3 and 28 characters.
5. Checked that the name starts with a lowercase letter.
6. Added error handling to provide clear feedback if the generated name doesn't meet the requirements.

Rationale:

The changes were made to comply with the naming requirements for AWS resources, ensuring that our infrastructure deployments do not encounter naming-related errors.

Testing:

Tested on local build with completion success at 9:50am PDT.

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[bigadsoleiman]

Looks good to me. Adding @spugachev for an additional review.