update title and screenshots dimension

Author: edmundhung

src/assets/images/workers/changelog/new-error-screen-dark.png

@@ -1,5 +1,5 @@
 ---
-title: Better error screen coming to Wrangler
+title: Easier debugging in Workers with improved Wrangler error screen
 description: Wrangler's error screen now features light and dark themes, more reliable source map resolution, and better error cause display.
 products:
   - workers
@@ -15,4 +15,3 @@ The error screen now features a refreshed design with support for both light and
 | ![Old error screen](../../../assets/images/workers/changelog/old-error-screen.png) | ![New light theme error screen](../../../assets/images/workers/changelog/new-error-screen-light.png) | ![New dark theme error screen](../../../assets/images/workers/changelog/new-error-screen-dark.png) |
 
 Try it out now with `npx wrangler@latest dev` in your Workers project.
-