Fix margin bug on horizontal scrolling cards

aleksis/apps/alsijil/static/css/alsijil/week_view.css

@@ -20,7 +20,7 @@
 }
 
 .horizontal-scroll-container.vertical .horizontal-scroll-card {
-    margin-left: 0;
+    margin-inline: 0;
 }
 
 dl {
@@ -50,7 +50,15 @@ dd {
 }
 
 .horizontal-scroll-card:first-of-type {
-    margin-left: .4rem;
+    margin-inline-start: .4rem;
+    -moz-margin-start: .4rem;
+    -webkit-margin-start: .4rem;
+}
+
+.horizontal-scroll-card:last-of-type {
+    margin-inline-end: .4rem;
+    -moz-margin-end: .4rem;
+    -webkit-margin-end: .4rem;
 }
 
 .horizontal-scroll-card .card-action {