feat: Multiple boilerplate options processing

[dhairyashiil]

Description: This PR improves the CLI to make it easier to use when generating boilerplate templates. The following changes have been made:

• Multiple Options: The CLI can now process multiple selected options at once, allowing users to generate multiple boilerplate templates in one command.
• Short Flag Mapping: Short flags like -a, -b, -c now map to their full option names, making it faster for users to choose options.

Impact:

• Users can generate multiple boilerplate templates quickly.
• Short flags make it easier to use the CLI with fewer keystrokes.

Closes #161

Video:

Multiple.Options.Apps.CLI.mp4

and

Short.Flag.Mapping.mp4

[dhairyashiil]

Hello @d-gubert , earlier, the CLI was processing only one option at a time, even when multiple options were selected. I thought adding multiple options processing would be a good contribution. Please review and share your feedback. Thank you.