Improve Genre Schema Validation & Performance in models/Genre.js

[Amansingh0807]

can improve the genreSchema by adding additional validations, enhancing error handling, and improving performance with indexing. The following improvements have been suggested:

1. Add Custom Validation Messages:
   Making the name field more descriptive with custom validation messages (e.g., when it's empty or too long).

2. Add Minimum Length for Genre Name:
   Ensuring that genre names have a minimum length of 3 characters.

3. Alphanumeric Validation:
   By Adding a regular expression validation to ensure genre names are alphanumeric.

4. Index the Name Field:
   Creating an index for the name field to improve query performance.