feat(core): update session, security system and QR exchange

- Removed session creation and Lightning payment logic
- Refactored security system:
  * no more restrictions
  * all systems enabled on session creation
- Improved QR code exchange for mobile devices

node_modules/html5-qrcode/camera/retriever.d.ts

@@ -0,0 +1,8 @@
+import { CameraDevice } from "./core";
+export declare class CameraRetriever {
+    static retrieve(): Promise<Array<CameraDevice>>;
+    private static rejectWithError;
+    private static isHttpsOrLocalhost;
+    private static getCamerasFromMediaDevices;
+    private static getCamerasFromMediaStreamTrack;
+}