Set alwaysConsumeMouseWheel for suggest details and parameter hints (microsoft#153375)

This aligns with how we treat the suggest list

Author: mjbvz

src/vs/editor/contrib/parameterHints/browser/parameterHintsWidget.ts

@@ -102,7 +102,9 @@ export class ParameterHintsWidget extends Disposable implements IContentWidget {
 		}));
 
 		const body = $('.body');
-		const scrollbar = new DomScrollableElement(body, {});
+		const scrollbar = new DomScrollableElement(body, {
+			alwaysConsumeMouseWheel: true,
+		});
 		this._register(scrollbar);
 		wrapper.appendChild(scrollbar.getDomNode());
 

src/vs/editor/contrib/suggest/browser/suggestWidgetDetails.ts

@@ -55,7 +55,9 @@ export class SuggestDetailsWidget {
 
 		this._body = dom.$('.body');
 
-		this._scrollbar = new DomScrollableElement(this._body, {});
+		this._scrollbar = new DomScrollableElement(this._body, {
+			alwaysConsumeMouseWheel: true,
+		});
 		dom.append(this.domNode, this._scrollbar.getDomNode());
 		this._disposables.add(this._scrollbar);