fix: Display Error Messages in DB Connection Modal (#22200)

superset-frontend/src/components/ErrorMessage/ErrorAlert.tsx

@@ -132,7 +132,7 @@ export default function ErrorAlert({
       {description && (
         <div className="error-body">
           <p>{description}</p>
-          {!isExpandable && body && (
+          {!isExpandable && (
             <span
               role="button"
               tabIndex={0}
@@ -213,7 +213,10 @@ export default function ErrorAlert({
         >
           <>
             <p>{subtitle}</p>
-            <br />
+            {/* This break was in the original design of the modal but
+            the spacing looks really off if there is only
+            subtitle or a body */}
+            {subtitle && body && <br />}
             {body}
           </>
         </ErrorModal>