training.tsx still a bit messy, all that is left is to retrieve data from firestore /training and /walkthrough and render it

src/components/TrainingContent/AnimatedHighlight.tsx

@@ -0,0 +1,23 @@
+import { useCallback } from "react";
+
+const HighlightedContent: React.FC<{ html: string; highlightPhrases: string[] }> = ({ html, highlightPhrases }) => {
+
+    const createHighlightedContent = useCallback(() => {
+        if (highlightPhrases.length === 0) {
+            return { __html: html };
+        }
+
+        const escapeRegExp = (string: string) => {
+            return string.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
+        };
+
+        const regex = new RegExp(`(${highlightPhrases.map(escapeRegExp).join('|')})`, 'gi');
+        const highlightedHtml = html.replace(regex, (match) => `<span style="background-color: yellow;">${match}</span>`);
+
+        return { __html: highlightedHtml };
+    }, [html, highlightPhrases]);
+
+    return <div dangerouslySetInnerHTML={createHighlightedContent()} />;
+};
+
+export default HighlightedContent;