[Feature] Configurable Dropdown object limit for forms

[ALonelyJuicebox]

Challenge:
In a valid effort to improve performance, a 200 object limiter was placed on all dropdown forms in the 0.18 release.
To the credit of the devs, this absolutely makes sense for the Studios and Performers dropdown forms. Lots of performers and studios out there, and users aren't often going to be hunting through those forms to find a studio/performer.

Things are different when it comes to Tags though.
The 200 object limit is just a little bit too restrictive.

When it comes to Tags, I am constantly scrolling through that dropdown form and ensuring a video has been tagged with all the appropriate tags for that media. Based on comments on the Discord, I'm not alone in this thinking either.

Proposed Solution:
Add a configurable option under Settings > Interface > Editing to define the max object size of the dropdown.

Proposed UX:

[WithoutPants]

$50 bounty placed (contribution no. 626966)