Change logo path for storybook (#882)

Author: esimkowitz

.storybook/theme.ts

@@ -4,14 +4,14 @@ export const light = create({
     base: "light",
     brandTitle: "Wave Terminal Storybook",
     brandUrl: "https://storybook.waveterm.dev",
-    brandImage: "../assets/wave-light.png",
+    brandImage: "/assets/wave-light.png",
     brandTarget: "_self",
 });
 
 export const dark = create({
     base: "dark",
     brandTitle: "Wave Terminal Storybook",
     brandUrl: "https://storybook.waveterm.dev",
-    brandImage: "../assets/wave-dark.png",
+    brandImage: "/assets/wave-dark.png",
     brandTarget: "_self",
 });