Fixes #12424: Account for Normalize change on figure element so that we don't potentially screw folks over

dist/css/bootstrap.css

@@ -301,6 +301,9 @@ a:focus {
   outline: 5px auto -webkit-focus-ring-color;
   outline-offset: -2px;
 }
+figure {
+  margin: 0;
+}
 img {
   vertical-align: middle;
 }