07-flex-layout-2: Add gap to container class instead of adding margin…

… to card class in solution.css (TheOdinProject#501)

* Add gap to container instead of adding margin to card

* Increasing gap to 32px

* Increase padding in container class

flex/07-flex-layout-2/solution/solution.css

@@ -70,14 +70,14 @@ a {
 }
 
 .container {
-  padding: 32px;
+  padding: 48px;
   display: flex;
   flex-wrap: wrap;
+  gap: 32px;
 }
 
 .card {
   padding: 16px;
-  margin: 16px;
   width: 300px;
 }