fix: required project name

[idagelic]

Make project name required in backend

Description

Makes project name required and non-empty when creating a workspace.
This is done by implementing an api level validator which will be used in the future

After consideration, ID is unnecessary as a part of the project request DTO so it has been removed.

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings