Fix pointer on CommitBox not displaying (#1036)

* Fix pointer on CommitBox not displaying

PR request based on @fcollonval's suggestion from this thread: #1035 (comment)

* Update src/style/CommitBox.ts

Co-authored-by: Frédéric Collonval <[email protected]>

Co-authored-by: Frédéric Collonval <[email protected]>

Author: Andrew H. Li

src/style/CommitBox.ts

@@ -109,5 +109,7 @@ export const activeStyle = style({
 export const disabledStyle = style({
   cursor: 'not-allowed !important',
   color: 'var(--jp-ui-font-color2) !important',
-  backgroundColor: 'var(--jp-layout-color3) !important'
+  backgroundColor: 'var(--jp-layout-color3) !important',
+  // TypeScript does not know about the value with `!important` flag
+  pointerEvents: 'auto !important' as any
 });