Improve layout, spacing, and select element styles

Updated `grid-template-columns` for headings to enhance responsiveness and added optional spacing between cards. Refactored `.article-card a` styles for consistency. Enhanced `.sort-controls select` with simplified font-family, tighter line-height, padding, and alignment improvements for better usability and appearance.

Author: PeterMaZep

assets/css/style.css

@@ -1124,12 +1124,16 @@ h1, h2, h3, h4, h5, h6 {
 }
 
 .article-card a {
-        text-decoration: none;
-        color: inherit;
+    text-decoration: none;
+    color: inherit;
 }
 
 .sort-controls select {
-    font-family: 'Minecraft Seven v2', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
-    font-size: 1rem; /* optional: match your site’s text size */
-    line-height: 1.4;
-}
+    font-family: 'Minecraft Seven v2', sans-serif;
+    font-size: 1rem;
+    line-height: 1.2; /* tighter line height */
+    padding: 6px 10px; /* give vertical breathing room */
+    box-sizing: border-box;
+    height: auto;
+    vertical-align: middle;
+}