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/es2015/ui/scanner/camera-selection-ui.js

@@ -0,0 +1,82 @@
+import { BaseUiElementFactory, PublicUiElementIdAndClasses } from "./base";
+import { Html5QrcodeScannerStrings } from "../../strings";
+export class CameraSelectionUi {
+    constructor(cameras) {
+        this.selectElement = BaseUiElementFactory
+            .createElement("select", PublicUiElementIdAndClasses.CAMERA_SELECTION_SELECT_ID);
+        this.cameras = cameras;
+        this.options = [];
+    }
+    render(parentElement) {
+        const cameraSelectionContainer = document.createElement("span");
+        cameraSelectionContainer.style.marginRight = "10px";
+        const numCameras = this.cameras.length;
+        if (numCameras === 0) {
+            throw new Error("No cameras found");
+        }
+        if (numCameras === 1) {
+            cameraSelectionContainer.style.display = "none";
+        }
+        else {
+            const selectCameraString = Html5QrcodeScannerStrings.selectCamera();
+            cameraSelectionContainer.innerText
+                = `${selectCameraString} (${this.cameras.length})  `;
+        }
+        let anonymousCameraId = 1;
+        for (const camera of this.cameras) {
+            const value = camera.id;
+            let name = camera.label == null ? value : camera.label;
+            if (!name || name === "") {
+                name = [
+                    Html5QrcodeScannerStrings.anonymousCameraPrefix(),
+                    anonymousCameraId++
+                ].join(" ");
+            }
+            const option = document.createElement("option");
+            option.value = value;
+            option.innerText = name;
+            this.options.push(option);
+            this.selectElement.appendChild(option);
+        }
+        cameraSelectionContainer.appendChild(this.selectElement);
+        parentElement.appendChild(cameraSelectionContainer);
+    }
+    disable() {
+        this.selectElement.disabled = true;
+    }
+    isDisabled() {
+        return this.selectElement.disabled === true;
+    }
+    enable() {
+        this.selectElement.disabled = false;
+    }
+    getValue() {
+        return this.selectElement.value;
+    }
+    hasValue(value) {
+        for (const option of this.options) {
+            if (option.value === value) {
+                return true;
+            }
+        }
+        return false;
+    }
+    setValue(value) {
+        if (!this.hasValue(value)) {
+            throw new Error(`${value} is not present in the camera list.`);
+        }
+        this.selectElement.value = value;
+    }
+    hasSingleItem() {
+        return this.cameras.length === 1;
+    }
+    numCameras() {
+        return this.cameras.length;
+    }
+    static create(parentElement, cameras) {
+        let cameraSelectUi = new CameraSelectionUi(cameras);
+        cameraSelectUi.render(parentElement);
+        return cameraSelectUi;
+    }
+}
+//# sourceMappingURL=camera-selection-ui.js.map