Want option to limit next up in number of days like the web client

[sjorge]

Describe the feature you'd like
The web client has an option to limit Next Up to a certain number of days:

This is nice as I have a bunch of shows I've stopped watching a long time ago that show up.

Note: this started with 10.9.10 as the endpoint got tweaked to return all items now.

With it set to 90 days the web client shows these:

On 10.9.10 swiftfin shows a very very very long scroll list (not found the end yet)

Additional context
n/a

[JPKribs]

Hey @sjorge, I thought this was a good addition. I was taking a look at how Jellyfin-Web was handling this and realized this was a really straight forward ask. Please see my PR below and let me know if you have any questions/changes:

#1212

[sjorge]

Wow that was quick! Not that I have a way to build the PR to test, but I had a glance the code and it looks fine.

A nice solution to setting the number of days that also works well for tvOS!