Allow ignoring some preview from showing up in the Showkase component list

[StylianosGakis]

My use case is that I may have one specific composable, but with a various number of different configurations, with different parameters etc, meaning many separate @Preview functions on one composable. On the showkase component list however, it'd be nice to only have one of them, while ignoring the rest, to make it easier to navigate and find what I am looking for without duplacation.

An extra annotation @ShowkaseIgnore or something similar comes to mind first, but maybe there's a better way to approach this.

[StylianosGakis]

Okay I just realised one can annotate a preview with both @ShowkaseComposable and @Preview and simply set skip to true on the former. Nevermind!