fix: restyle fullscreen caption

src/server/page-template.ts

@@ -144,9 +144,6 @@ ${APP_STYLES}
         x
       </button>
       <div class="overlay-card">
-        <header>
-          <strong id="overlay-title">Photo</strong>
-        </header>
         <div class="overlay-media">
           <div class="overlay-loading" id="overlay-loading" aria-live="polite" aria-atomic="true">
             <span class="spinner active" aria-hidden="true"></span>
@@ -154,6 +151,9 @@ ${APP_STYLES}
           </div>
           <img id="overlay-image" alt="" />
         </div>
+        <footer class="overlay-caption">
+          <strong id="overlay-title">Photo</strong>
+        </footer>
       </div>
     </div>