docs: Add CollapsedWave to showcase.md (#643)

migueltorrescosta

2023-12-20 be76da9e95b6744f4934280cb85504371ccc1244

 quartz/processors/filter.ts

@@ -1,5 +1,5 @@
import { BuildCtx } from "../ctx"
import { PerfTimer } from "../perf"
import { BuildCtx } from "../util/ctx"
import { PerfTimer } from "../util/perf"
import { ProcessedContent } from "../plugins/vfile"

export function filterContent(ctx: BuildCtx, content: ProcessedContent[]): ProcessedContent[] {