remove unused import

Author: KianNH

src/components/overrides/MarkdownContent.astro

@@ -1,7 +1,6 @@
 ---
 import "@astrojs/starlight/style/markdown.css";
 import ImageZoom from "starlight-image-zoom/components/ImageZoom.astro";
-import FeedbackPrompt from "../FeedbackPrompt.tsx";
 
 /*
     MIT License