Adjust margins for attachments/previews

src/components/gallery/gallery.vue

@@ -27,12 +27,15 @@
   align-content: stretch;
   flex-grow: 1;
   margin-top: 0.5em;
+  margin-bottom: 0.25em;
 
   .attachments, .attachment {
     margin: 0 0.5em 0 0;
     flex-grow: 1;
     height: 100%;
     box-sizing: border-box;
+    // to make failed images a bit more noticeable on chromium
+    min-width: 2em;
   }
 
   .image-attachment {

src/components/link-preview/link-preview.vue

@@ -26,7 +26,7 @@
 
   // TODO: clean up the random margins in attachments, this makes preview line
   // up with attachments...
-  margin-right: 0.7em;
+  margin-right: 0.5em;
 
   .card-image {
     flex-shrink: 0;