fix: add height=48 to ticker image in LP

Author: unhappychoice

scripts/generate-preview-index.js

@@ -302,7 +302,7 @@ ${themes
   <h2>Profile Card</h2>
   <p class="lead">Embed an animated news ticker in your GitHub Profile README. AI writes the headlines.</p>
   <div style="border:1px solid #222;border-radius:6px;overflow:hidden;margin-bottom:1rem;">
-    <img src="screenshots/card-dark.svg" alt="Weekly News Ticker" style="width:100%;display:block;" />
+    <img src="screenshots/card-dark.svg" alt="Weekly News Ticker" height="48" style="width:100%;display:block;" />
   </div>
   <p class="qs-note" style="margin-top:0.5rem;">
     Generated automatically with each weekly report. Headlines use dramatic, tongue-in-cheek labels like a TV news broadcast.