Revert "Fix social icons extraneous margin"

This reverts commit 6864770ad4.

assets/css/common/main.css

@@ -28,12 +28,14 @@
 }
 
 .social-icons {
-    display: flex;
-    gap: 1rem;
+    padding: 12px 0;
+}
+
+.social-icons a:not(:last-of-type) {
+    margin-inline-end: 12px;
 }
 
 .social-icons a svg {
-    display: block;
     height: 26px;
     width: 26px;
 }