Release v0.6.0: screenshot notifications with previews and responsive clipboard history

src/screenshot_notifications.h

@@ -0,0 +1,11 @@
+#pragma once
+#include "platform.h"
+namespace ks {
+bool notifyScreenshot(const Clip &);
+std::string screenshotNotificationError();
+void registerScreenshotNotifications();
+int runScreenshotToastActivator();
+DWORD startScreenshotActivationListener();
+bool validScreenshotToken(const std::wstring &);
+Clip loadNotifiedScreenshot(const std::wstring &);
+}