Fix glitch-soc columns padding on mobile (fixes #561)

app/javascript/flavours/glitch/styles/components/columns.scss

@@ -13,7 +13,7 @@
   position: relative;
 }
 
-@include limited-single-column('screen and (max-width: 360px)', $parent: null) {
+@include limited-single-column('screen and (min-width: 360px)', $parent: null) {
   .columns-area {
     padding: 10px;
   }