feat: Set histogram maxbins from 25 -> 18 (#47)

Author: manzt

lib/clients/Histogram.ts

@@ -61,7 +61,7 @@ export class Histogram extends MosaicClient implements Mark {
 			type: options.type,
 		};
 		// calls this.channelField internally
-		let bin = mplot.bin(options.column)(this, "x");
+		let bin = mplot.bin(options.column, { steps: 18 })(this, "x");
 		this.#select = { x1: bin.x1, x2: bin.x2, y: count() };
 		this.#interval = new mplot.Interval1D(this, {
 			channel: "x",