Added strict type checking to the project. (#236)

* Implement strict typing (WIP).

* changes

* Finish type checks

* Fix notification icon, matugen settings and update tsconfig.

* OSD Styling updates and added the ability to configure OSD duration.

lib/types/powerprofiles.d.ts

@@ -0,0 +1,8 @@
+import icons from "modules/icons/index";
+import PowerProfiles from "types/service/powerprofiles.js"
+
+export type PowerProfiles = InstanceType<typeof PowerProfiles>;
+export type PowerProfile = "power-saver" | "balanced" | "performance";
+export type PowerProfileObject = {
+    [key: string]: string;
+}