add plausible kofi button tracking class

Author: mrtheduts

src/pages/posts/[...slug].astro

@@ -111,7 +111,7 @@ const jsonLd = {
             {licenseConfig.enable && <License title={entry.data.title} slug={entry.slug} pubDate={entry.data.published} class="mb-6 rounded-xl license-container onload-animation"></License>}
 
             <center>
-                <a href="https://ko-fi.com/belfardev" target="_blank">
+                <a class="plausible-event-name=Kofi+Click" href="https://ko-fi.com/belfardev" target="_blank">
                     <Image src={kofiButton} width="450px" alt="Support me on Ko-fi!" />
                 </a>
             </center>