Fix search result category badge alignment on desktop

Add flex:1 to text container and flex-shrink:0 to badge so
the category label is consistently right-aligned.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: brunoborges

site/styles.css

@@ -1414,6 +1414,15 @@ nav {
   transition: background 0.15s;
 }
 
+.search-result > div:first-child {
+  flex: 1;
+  min-width: 0;
+}
+
+.search-result > .badge {
+  flex-shrink: 0;
+}
+
 .search-result:hover,
 .search-result.selected {
   background: var(--surface-2);