Add more scopes to themes based on feedback for C++ and discussion

Part of #80783

extensions/theme-defaults/themes/dark_plus.json

@@ -23,6 +23,7 @@
 				"support.type",
 				"entity.name.type",
 				"entity.name.namespace",
+				"entity.other.attribute",
 				"entity.name.scope-resolution",
 				"entity.name.class",
 				"storage.type.numeric.go",
@@ -76,7 +77,8 @@
 				"source.cpp keyword.operator.new",
 				"keyword.operator.delete",
 				"keyword.other.using",
-				"keyword.other.operator"
+				"keyword.other.operator",
+				"entity.name.operator"
 			],
 			"settings": {
 				"foreground": "#C586C0"