Home page: the screenshot's panel frames it evenly on all four sides (#216)

With no padding at the bottom, so the window would seem to rise out of the panel, it read as a
border missing a side.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

site/index.html

@@ -54,8 +54,8 @@
     <figcaption>Some of what people listen to and read on iPX servers today.</figcaption>
   </figure>
 
-  <!-- The window sits in a navy panel, the dial's material, rising out of its bottom edge as if
-       set into the radio; shown near its own size so its text can be read. -->
+  <!-- The window in a navy panel, the dial's material, shown near its own size so its text can
+       be read. -->
   <section class="shots" aria-labelledby="shots">
     <h2 id="shots">In the browser</h2>
     <p class="shotlede">Everyone signs in to a list of their own: feeds down the side, episodes in a table with each one's notes below, and the player along the bottom, as iPodderX laid them out.</p>