Allow uiSchema to be set as part of the settings for HomePage

Signed-off-by: ivgo <ivgo@spreadgroup.com>

plugins/home/README.md

@@ -173,7 +173,8 @@ Available home page properties that are used for homepage widgets are:
 To define settings that the users can change for your component, you should define the `layout` and `settings`
 properties. The `settings.schema` object should follow
 [react-jsonschema-form](https://rjsf-team.github.io/react-jsonschema-form/docs/) definition and the type of the schema
-must be `object`.
+must be `object`. As well, the `uiSchema` can be defined if a certain UI style needs to be applied fo any of the defined
+properties. More documentation [here](https://rjsf-team.github.io/react-jsonschema-form/docs/api-reference/uiSchema).
 
 ```tsx
 import { createCardExtension } from '@backstage/plugin-home-react';
@@ -201,6 +202,11 @@ export const HomePageRandomJoke = homePlugin.provide(
           },
         },
       },
+      uiSchema: {
+        defaultCategory: {
+          'ui:widget': 'radio', // Instead of the default 'select'
+        },
+      },
     },
   }),
 );