[Lens] [Inline editing] Flyout gets too big fix (#188451)

## Summary

Fixes #188330 

Caused by eui upgrade:
elastic/eui@b1370af

It's an ugly solution, but I couldn't find any other :( 

After the fix:

<img width="1258" alt="Screenshot 2024-07-16 at 17 09 44"
src="https://github.com/user-attachments/assets/d0678e23-d7bd-4e18-b906-a0202c4aaadc">

x-pack/plugins/lens/public/trigger_actions/open_lens_config/helpers.scss

@@ -13,4 +13,10 @@
       pointer-events: auto;
     }
   }
+}
+
+.lnsEditFlyoutBody {
+  .euiFlyoutBody__overflow {
+    transform: initial;
+  }
 }