Adjust the inset of the disabled PromptField overlay to cover the border

- when showing warning, we overlay the prompt field with pseudo element that dims it. It's almost great - the only issue is that the border is not getting dimmed.

Author: robertpiosik

packages/ui/src/components/editor/panel/prompts/PromptField/PromptField.module.scss

@@ -25,8 +25,8 @@
       &::after {
         content: '';
         position: absolute;
-        inset: 0;
-          z-index: 2;
+        inset: -1px;
+        z-index: 2;
         border-radius: inherit;
         background-color: color-mix(
           in srgb,