switch back to square-ish attribute boxes

I really want the circles to work to be more like the official
character sheets, but it looks too weird with the square elements
inside it.

Also going with consistent margins around the elements--I'm not
sure why the right margin was 0 before.

Magical-Kitties/Magical-Kitties-Save-the-Day.css

@@ -63,9 +63,8 @@
   display: flex;
   flex-direction: column;
   align-items: center;
-  margin: 5px 0 5px 5px;
   border: 8px solid gray;
-  border-radius: 100%;
+  border-radius: 40%;
   min-height: 8em;
   min-width: 8em;
   padding: 15px;