Resolve "Implement basic functionality"

Closes #1 (closed) Closes #2 (closed) Closes #3 (closed) Closes #4 (closed) Closes #5 (closed) Closes #6 (closed)

src/Grid.vue

@@ -71,6 +71,7 @@ export default {
           newPositionValid = this.positionAllowed(x, y, element.key);
           if (!newPositionValid) break;
         }
+        if (!newPositionValid) break;
       }
 
       if (!newPositionValid) {
@@ -99,6 +100,7 @@ export default {
           newPositionValid = this.positionAllowed(x, y, element.key);
           if (!newPositionValid) break;
         }
+        if (!newPositionValid) break;
       }
 
       if (!newPositionValid) return;