Remove the explicit box-shadow styling from the modal container

Author: robertpiosik

packages/ui/src/components/editor/panel/modals/Modal/Modal.module.scss

@@ -66,7 +66,6 @@
   background-color: var(--vscode-quickInput-background);
   color: var(--vscode-quickInput-foreground);
   border: 1px solid var(--vscode-widget-border);
-  box-shadow: 0 0 8px 2px var(--vscode-widget-shadow);
   display: flex;
   flex-direction: column;
 }