Fix wrong cursor style on disabled inputs

*something* is setting the global cursor style for :disabled elements to "default" and I don't know what, but it conflicts with the intended cursor style of SemiDesign, so let it be determined by semi classes instead.

src/index.css

@@ -62,6 +62,11 @@
   color: inherit;
 }
 
+:disabled {
+  /* inherit Semi's cursor style for disabled elements */
+  cursor: inherit;
+}
+
 ::-webkit-scrollbar {
   width: 8px;
   height: 8px;