align hight of reference search widget, fixes #36563

src/vs/editor/contrib/referenceSearch/media/referencesWidget.css

@@ -27,8 +27,7 @@
 }
 
 .monaco-editor .reference-zone-widget .ref-tree {
-	line-height: 22px;
-	font-size: 13px;
+	line-height: 23px;
 }
 
 .monaco-editor .reference-zone-widget .ref-tree .reference {

src/vs/editor/contrib/referenceSearch/referencesWidget.ts

@@ -433,7 +433,7 @@ class Renderer implements tree.IRenderer {
 	}
 
 	getHeight(tree: tree.ITree, element: FileReferences | OneReference): number {
-		return 22;
+		return 23;
 	}
 
 	getTemplateId(tree: tree.ITree, element: FileReferences | OneReference): string {