[BUG] Limit total tick marks on sliders

[ndrezn]

Slider components, when set with many tick marks, will freeze the UI.

While developers may notice this and fix it, in AI systems setting too many tick marks causes problems in rendering really easily, and is hard to debug.

We can plausibly just restrict the total tick marks to ~5k or so as a maximum (most displays are 5k pixels wide, so 5k tick marks is more than enough).

[gvwilson]

@T4rk1n please have a look as soon as you can.