Fix font styles on react dev overlay (#51518)
Fixes font styles change introduced in #49782
### Visuall Diff - After vs Before
<img src="https://github.com/vercel/next.js/assets/4800338/92f6af3a-9728-4dc5-b3d0-b21eefd16164" width="400">
<img src="https://github.com/vercel/next.js/assets/4800338/df88c9dd-b710-4a0a-a1aa-131adb55efa6" width="400">
