Keep the API page feedback prompt in the article column (#4821)

On wide screens the prompt spanned both grid columns. Its top border ran under the examples rail, and on long endpoint pages the sticky rail overlapped it. The rail already sits in row 1 only, so the prompt in row 2 stays below the rail without the span.

Co-authored-by: Jan Calanog <reakaleek@users.noreply.github.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

Author: reakaleek

src/Elastic.Documentation.Site/Assets/api-docs.css

@@ -2975,9 +2975,9 @@ button.example-response-tab:focus-visible {
 		grid-template-rows: auto auto;
 	}
 
-	/* Feedback spans both columns so it ends the page, below the article and the examples rail. */
+	/* Feedback ends the article column, in the row under both the article and the examples rail. */
 	.api-page-grid > page-feedback {
-		grid-column: 1 / -1;
+		grid-column: 1;
 		grid-row: 2;
 	}