Improve Inline Verbose Name Handling in Django Admin

[archie-ai-code-explain-pr-review]

• Django allows specifying verbose_name and verbose_name_plural for Inline classes in admin views
• However, verbose_name_plural for an Inline is currently based on the model name or the verbose_name specified in the model's Meta class, rather than the verbose_name set for the Inline
• This can be confusing, as users may expect the plural form to be automatically derived from the specified verbose_name for the Inline, similar to how it works for a model's Meta class
• Propose that verbose_name_plural for an Inline class should by default be based on the verbose_name specified for that Inline, to provide a more consistent and intuitive experience