Reimplement notice file generation for third-party licenses through Rust, now with CEF credits (#3808)

desktop/wrapper/src/messages.rs

@@ -75,6 +75,7 @@ pub enum DesktopFrontendMessage {
 	WindowHideOthers,
 	WindowShowAll,
 	Restart,
+	LoadThirdPartyLicenses,
 }
 
 pub enum DesktopWrapperMessage {
@@ -126,6 +127,9 @@ pub enum DesktopWrapperMessage {
 		x: f64,
 		y: f64,
 	},
+	LoadThirdPartyLicenses {
+		text: String,
+	},
 }
 
 #[derive(Clone, serde::Serialize, serde::Deserialize, Debug)]