remove links to glitch assets

signup/index.html

@@ -14,7 +14,7 @@
     <!-- The website JavaScript file -->
     <script src="../scripts/nav.js" defer></script>
     <script src="../scripts/footer.js" defer></script>
-    
+
 
     <!-- Meta -->
     <link rel="canonical" href="https://fedizinefest.fyi/signup" />
@@ -26,7 +26,7 @@
     <meta property="og:description" content="get involved with FediZineFest" />
     <meta
       property="og:image"
-      content="https://cdn.glitch.global/2e8ca9af-7da1-4425-b7be-7fd629b919cf/2025.png?v=1734061088862"
+      content="/assets/logo.png"
     />
     <meta
       property="og:image:alt"
@@ -62,7 +62,7 @@
               >this year's leftover bundles</a
             >.
           </p>
-          
+
           <h2>
             Leftovers (2024)
           </h2>