docs: add FallbackImage example

stories/examples/FallbackImage.stories.tsx

@@ -0,0 +1,106 @@
+import { Language } from './components/Language';
+import { Map, Marker, Source, StyleLoaded, Layer } from '../../src';
+
+import type { Meta, StoryObj } from '@storybook/react';
+import type { LayerProps } from '../../src';
+
+const pointsLayer: LayerProps = {
+  id: 'points',
+  type: 'symbol',
+  source: 'points',
+  layout: {
+    // These icons are a part of the Mapbox Light style.
+    // To view all images available in a Mapbox style, open
+    // the style in Mapbox Studio and click the "Images" tab.
+    // To add a new image to the style at runtime see
+    // https://docs.mapbox.com/mapbox-gl-js/example/add-image/
+    'icon-image': [
+      'coalesce',
+      ['image', ['get', 'icon']],
+      // If no image with the name above exists, show the
+      // "rocket" image instead.
+      ['image', 'rocket'],
+    ],
+    'text-field': ['get', 'title'],
+    'text-font': ['Open Sans Semibold', 'Arial Unicode MS Bold'],
+    'text-offset': [0, 0.6],
+    'text-anchor': 'top',
+  },
+};
+
+const meta = {
+  title: '示例/FallbackImage',
+  render: () => {
+    return (
+      <Map zoom={5} center={[-77, 38.75]} containerStyle={{ height: '100vh' }}>
+        <StyleLoaded>
+          <Source
+            id="points"
+            type="geojson"
+            data={{
+              type: 'FeatureCollection',
+              features: [
+                {
+                  type: 'Feature',
+                  geometry: {
+                    type: 'Point',
+                    coordinates: [-77.03238901390978, 38.913188059745586],
+                  },
+                  properties: {
+                    title: 'Washington DC',
+                    icon: 'monument',
+                  },
+                },
+                {
+                  type: 'Feature',
+                  geometry: {
+                    type: 'Point',
+                    coordinates: [-79.9959, 40.4406],
+                  },
+                  properties: {
+                    title: 'Pittsburgh',
+                    // The Mapbox Light style's sprite does not
+                    // contain an image with the name "bridges"
+                    // but we can display a fallback image.
+                    icon: 'bridges',
+                  },
+                },
+                {
+                  type: 'Feature',
+                  geometry: {
+                    type: 'Point',
+                    coordinates: [-76.2859, 36.8508],
+                  },
+                  properties: {
+                    title: 'Norfolk',
+                    icon: 'harbor',
+                  },
+                },
+              ],
+            }}
+            cluster
+            clusterMaxZoom={14}
+            clusterRadius={50}
+          >
+            <Layer {...pointsLayer} />
+          </Source>
+        </StyleLoaded>
+        <Language />
+      </Map>
+    );
+  },
+  parameters: {
+    layout: 'fullscreen',
+  },
+  argTypes: {},
+  args: {
+    lngLat: [-122.414, 37.776],
+  },
+} satisfies Meta<typeof Marker>;
+
+export default meta;
+type Story = StoryObj<typeof meta>;
+
+export const FallbackImage: Story = {
+  args: {},
+};