visuals, fixes & storybook upd

src/stories/Feedback.stories.tsx

@@ -14,11 +14,24 @@ const meta = {
       },
     },
   },
+  argTypes: {
+    value: { control: { type: 'range', min: 0, max: 100, step: 1 } },
+    className: { control: 'text' },
+  },
+  args: { value: 40 },
 } satisfies Meta<typeof Progress>;
 
 export default meta;
 type Story = StoryObj<typeof meta>;
 
+export const Playground: Story = {
+  render: (args) => (
+    <div style={{ width: 320 }}>
+      <Progress {...args} />
+    </div>
+  ),
+};
+
 function ProgressDemo() {
   const [v, setV] = useState(40);
   return (