Reset VS Dark + Light styling for meta embedded (#33866)

Fixes #33120

Adds rules to vs dark+light to reset style for meta embedded scopes. This is a proposed approach to support colorization of nested languages better

extensions/theme-defaults/themes/dark_vs.json

@@ -9,6 +9,13 @@
 				"background": "#1E1E1E"
 			}
 		},
+		{
+			"scope": "meta.embedded",
+			"settings": {
+				"foreground": "#D4D4D4",
+				"background": "#1E1E1E"
+			}
+		},
 		{
 			"scope": "emphasis",
 			"settings": {