Add stats during a test

src/ProgressStats.js

@@ -0,0 +1,31 @@
+import React from "react";
+
+export default function ProgressStats(props) {
+	return (
+		<div className="progress-stats">
+			<div className="progress-stat-row-container">
+				<div className="stat-row stat-row--inline stat-row--no-gap">
+					<h1>{props.grade.toFixed(2)}</h1>
+					<p>%</p>
+				</div>
+				<div className="stat-row stat-row--inline">
+					<h1>{props.correct}</h1>
+					<p>correct</p>
+				</div>
+				<div className="stat-row stat-row--inline">
+					<h1>{props.incorrect}</h1>
+					<p>mistake{ props.incorrect !== 1 && "s" }</p>
+				</div>
+				<div className="stat-row stat-row--inline">
+					<h1>{props.progress}</h1>
+					<p>guess{props.progress !== 1 && "es"}</p>
+				</div>
+			</div>
+			<div className="progress-bar">
+				<div style={{ width: props.correct > 0 && props.totalVocabItems > 0 ? `${(props.correct / props.totalVocabItems * 100)}%` : "0" }}>
+					<p>{props.correct}/{props.totalVocabItems}</p>
+				</div>
+			</div>
+		</div>
+	)
+}