Don't hide suggest widget when expanding ghost text

src/vs/editor/contrib/inlineCompletions/ghostTextWidget.ts

@@ -258,7 +258,7 @@ export class GhostTextWidget extends Disposable {
 		button.className = 'button suggest-preview-text';
 		button.append(`+${remainingLinesLength} lines…`);
 
-		disposableStore.add(dom.addStandardDisposableListener(button, 'click', (e) => {
+		disposableStore.add(dom.addStandardDisposableListener(button, 'mousedown', (e) => {
 			this.model?.setExpanded(true);
 			e.preventDefault();
 			this.editor.focus();

src/vs/editor/contrib/inlineCompletions/suggestWidgetAdapterModel.ts

@@ -68,6 +68,11 @@ export class SuggestWidgetAdapterModel extends BaseGhostTextWidgetModel {
 		}));
 	}
 
+	public override setExpanded(expanded: boolean): void {
+		super.setExpanded(expanded);
+		this.updateFromSuggestion();
+	}
+
 	private isSuggestionPreviewEnabled(): boolean {
 		const suggestOptions = this.editor.getOption(EditorOption.suggest);
 		return suggestOptions.showSuggestionPreview;