Ensure column settings take minimum of 50% width

Author: aatanasovdev

src/css/components/ui/_grid.scss

@@ -16,8 +16,8 @@
 }
 
 &-column {
-
 	width: 100%;
+	min-width: 50%;
 	box-sizing: border-box;
 	padding: 0 0 0 $size-padding-column;