fix: no more gaps if h spacing is zero

- fixes #31

src/rendering.js

@@ -394,6 +394,10 @@ export default function link(scope, elem, attrs, ctrl) {
     // Card width should be MIN_CARD_SIZE at least
     w = Math.max(w, MIN_CARD_SIZE);
 
+    if (cardHSpacing == 0) {
+      w = w+1;
+    }
+
     return w;
   }
 
@@ -420,6 +424,10 @@ export default function link(scope, elem, attrs, ctrl) {
     // Card height should be MIN_CARD_SIZE at least
     h = Math.max(h, MIN_CARD_SIZE);
 
+    if (cardVSpacing == 0) {
+      h = h+1
+    }
+
     return h;
   }