fix(08): add missing small-1 and small-8 grid column definitions

- checkbox_anzahl field type uses small-1/small-8/small-3 layout
- Only small-3 was defined, causing broken layout for those fields

assets/css/form.css

@@ -44,6 +44,10 @@
 	}
 }
 
+.umzugsliste-wrapper .small-1.columns {
+	width: 8.33333%;
+}
+
 .umzugsliste-wrapper .small-3.columns {
 	width: 25%;
 }
@@ -52,6 +56,10 @@
 	width: 33.33333%;
 }
 
+.umzugsliste-wrapper .small-8.columns {
+	width: 66.66667%;
+}
+
 .umzugsliste-wrapper .small-9.columns {
 	width: 75%;
 }