Added filters for notifications and system tray items. (#234)

* Added filters for notifications and systray. closes #233

* Add links to documentation.

globals.d.ts

@@ -0,0 +1,9 @@
+// globals.d.ts
+
+import { Variable as VariableType } from "types/variable";
+
+declare global {
+    var globalMousePos: VariableType<number[]>;
+}
+
+export { };