dynamically load .style.js files; move the files closer to related components

src/components/user_avatar/avatar.style.js

@@ -0,0 +1,22 @@
+export default {
+  name: 'Avatar',
+  selector: '.Avatar',
+  variants: {
+    compact: '.-compact'
+  },
+  defaultRules: [
+    {
+      directives: {
+        roundness: 3,
+        shadow: [{
+          x: 0,
+          y: 1,
+          blur: 8,
+          spread: 0,
+          color: '#000000',
+          alpha: 0.7
+        }]
+      }
+    }
+  ]
+}