Add badge capabilities to users (#20607)

Co-authored-by: silverwind <me@silverwind.io>
Co-authored-by: zeripath <art27@cantab.net>
Co-authored-by: John Olheiser <john.olheiser@gmail.com>

web_src/less/_user.less

@@ -169,6 +169,15 @@
   }
 }
 
+.user-badges {
+  display: grid;
+  grid-template-columns: repeat(auto-fill, 64px);
+  gap: 2px;
+}
+
+.user-badges img {
+  object-fit: contain;
+}
 #notification_div .tab.segment {
   overflow-x: auto;
 }