fix(Rating): hover color when score<2 and disabled fix #3400

Author: bindoon

docs/rating/demo/disabled.md

@@ -18,5 +18,9 @@ Rating component can only display score when you set `disabled` attribute.
 ````jsx
 import { Rating } from '@alifd/next';
 
-ReactDOM.render(<Rating defaultValue={3.5} disabled />, mountNode);
+ReactDOM.render(<div>
+<Rating defaultValue={2.5} disabled />
+<br/>
+<Rating defaultValue={1.5} disabled />
+</div>, mountNode);
 ````

src/rating/main.scss

@@ -119,7 +119,7 @@
         }
     }
 
-    &:focus,
+    &:focus #{$rating-prefix}-base:not(#{$rating-prefix}-base-disabled),
     &.hover {
         outline: none;
         #{$rating-prefix}-overlay {