Add barcode-detector-api-polyfill dependency and update environment variable declarations in SvelteKit project

node_modules/@zxing/browser/esm/writers/BrowserCodeSvgWriter.d.ts

@@ -0,0 +1,47 @@
+import { EncodeHintType } from '@zxing/library';
+declare abstract class BrowserCodeSvgWriter {
+    /**
+     * Default quiet zone in pixels.
+     */
+    private static readonly QUIET_ZONE_SIZE;
+    /**
+     * SVG markup NameSpace
+     */
+    private static readonly SVG_NS;
+    /**
+     * A HTML container element for the image.
+     */
+    private containerElement;
+    /**
+     * Constructs. 😉
+     */
+    constructor(containerElement: string | HTMLElement);
+    /**
+     * Writes the QR code to a SVG and renders it in the container.
+     */
+    write(contents: string, width: number, height: number, hints?: Map<EncodeHintType, any>): SVGSVGElement;
+    /**
+     * Creates a SVG element.
+     */
+    protected createSVGElement(w: number, h: number): SVGSVGElement;
+    /**
+     * Creates a SVG rect.
+     */
+    protected createSvgPathPlaceholderElement(w: number, h: number): SVGPathElement;
+    /**
+     * Creates a SVG rect.
+     */
+    protected createSvgRectElement(x: number, y: number, w: number, h: number): SVGRectElement;
+    /**
+     * Encodes the content to a Barcode type.
+     */
+    private encode;
+    /**
+     * Renders the SVG in the container.
+     *
+     * @note the input matrix uses 0 == white, 1 == black. The output matrix
+     *  uses 0 == black, 255 == white (i.e. an 8 bit greyscale bitmap).
+     */
+    private renderResult;
+}
+export { BrowserCodeSvgWriter };