fix(highlights): new italic format not displayed

src/public/app/widgets/highlights_list.spec.ts

@@ -0,0 +1,16 @@
+import { describe, expect, it } from "vitest";
+import HighlightsListWidget from "./highlights_list.js";
+
+describe("getHighlightList", () => {
+    let widget = new HighlightsListWidget();
+
+    it("supports old italics", async () => {
+        const highlights = await widget.getHighlightList("This is <i>italic</i> text", [ "italic" ]);
+        expect(highlights.$highlightsList.html()).toBe("<li><i>italic</i></li>");
+    });
+
+    it("supports new italics", async () => {
+        const highlights = await widget.getHighlightList("This is <em>italic</em> text", [ "italic" ]);
+        expect(highlights.$highlightsList.html()).toBe("<li><em>italic</em></li>");
+    });
+})