refactor(tools): Move tools into shared directory instead of the non-descript "general"

src/components/tools/QrCodeScanner.svelte

@@ -0,0 +1,85 @@
+<script>
+	import { onMount, createEventDispatcher } from "svelte";
+	import {
+		Html5QrcodeScanner,
+		Html5QrcodeScanType,
+		Html5QrcodeSupportedFormats,
+	} from "html5-qrcode";
+	import { debounce } from "underscore";
+
+	export let width;
+	export let height;
+	export let paused = false;
+
+	const dispatch = createEventDispatcher();
+
+	const debouncedDispatch = debounce(
+		function (decodedText) {
+			// console.log("dispatchEvent");
+			dispatch("detect", { decodedText });
+		},
+		500,
+		true
+	);
+
+	function onScanSuccess(decodedText, decodedResult) {
+		// console.log("onScanSuccess", decodedText);
+		if (!paused) {
+			debouncedDispatch(decodedText);
+		}
+	}
+
+	// usually better to ignore and keep scanning
+	function onScanFailure(message) {
+		if (!paused) {
+			dispatch("error", { message });
+		}
+	}
+
+	let scanner;
+	onMount(() => {
+		scanner = new Html5QrcodeScanner(
+			"qr-scanner",
+			{
+				fps: 10,
+				showTorchButtonIfSupported: true,
+				rememberLastUsedCamera: true,
+				qrbox: { width, height },
+				aspectRatio: 1,
+				supportedScanTypes: [Html5QrcodeScanType.SCAN_TYPE_CAMERA],
+				formatsToSupport: [
+					Html5QrcodeSupportedFormats.CODE_39,
+					Html5QrcodeSupportedFormats.EAN_8,
+					Html5QrcodeSupportedFormats.EAN_13,
+					Html5QrcodeSupportedFormats.QR_CODE,
+					Html5QrcodeSupportedFormats.CODE_128,
+				],
+			},
+			false // non-verbose
+		);
+		scanner.render(onScanSuccess, onScanFailure);
+	});
+</script>
+
+<div id="qr-scanner" class={$$props.class} />
+
+<style>
+	/* Hide unwanted icons */
+	#qr-scanner :global(img[alt="Info icon"]),
+	#qr-scanner :global(img[alt="Camera based scan"]) {
+		display: none;
+	}
+
+	/* Change camera permission button text */
+	#qr-scanner :global(#html5-qrcode-button-camera-permission) {
+		visibility: hidden;
+	}
+	#qr-scanner :global(#html5-qrcode-button-camera-permission::after) {
+		position: absolute;
+		inset: auto 0 0;
+		display: block;
+		content: "Allow camera access";
+		visibility: visible;
+		padding: 10px 0;
+	}
+</style>