feat(medusa, admin-ui): add description field to product categories (#3768)

* feat(medusa): add description field to product categories

* chore: set nullable to false

* chore: added UI for description

* chore: added codegen files

packages/medusa/src/models/product-category.ts

@@ -25,6 +25,9 @@ export class ProductCategory extends BaseEntity {
   @Column()
   name: string
 
+  @Column({ nullable: false, default: '' })
+  description: string
+
   @Index({ unique: true })
   @Column({ nullable: false })
   handle: string