fix v3 storybook logo (#6914)

Author: reidbarber

.storybook/.parcelrc

@@ -6,6 +6,7 @@
     "*.{js,mjs,jsm,jsx,es6,cjs,ts,tsx}": [
       "@parcel/transformer-js",
       "@parcel/transformer-react-refresh-wrap"
-    ]
+    ],
+    "raw:*": ["@parcel/transformer-raw"]
   }
 }

.storybook/logo-dark.svg

@@ -34,7 +34,17 @@ export const parameters = {
     source: {
       type: 'code'
     }
-  }
+  },
+  darkMode: {
+    light: {
+      brandTitle: 'React Spectrum',
+      brandImage: new URL('raw:logo.svg', import.meta.url).toString()
+    },
+    dark: {
+      brandTitle: 'React Spectrum',
+      brandImage: new URL('raw:logo-dark.svg', import.meta.url).toString()
+    }
+  },
 };
 
 export const decorators = [