[TVShows] Multi scrape dialog should disable epsiode tab if only TV shows are requested

[bugwelle]

And vice versa. Otherwise it suggests that all episodes of the selected TV show should be scraped.

[Boulder08]

Continuing the discussion from the Kodi forum - I think the expected behaviour is that if you select a TV show or multiple shows and have any checkbox for episodes checked, they should be scraped. Otherwise just scrape the show. Updating older data or processing several new shows would be very tedious if the shows had to be processed one by one (because the scraping dialog used for a single item allows you to select what data you want to get).

As I haven't followed the design of the application, I don't know if the behaviour has been there since day one or so. As a new user, I found two different dialogs for the same operation very confusing -- and I sometimes need to design end user interfaces or processes at work, so I should be capable of handling this stuff easily :D

I understand that this is more or less a feature for which you don't necessarily have the time anymore. I was just thinking that it might be possible to achieve almost completely by chaining processes you already have implemented. And yes, I would definitely fork the repo and submit a pull request if I just could do something about the code. I set up a Qt environment and took a little peek at the project but it would take some serious time to start learning from scratch.