style: improve code formatting and type safety

- Add proper type annotation for onDetect result parameter
- Fix indentation and line wrapping in template
- Remove unused WebInlineQRScanner import
- Clean up button attribute ordering
- Fix whitespace and formatting issues
- Remove unused empty divs

Dockerfile

@@ -1,5 +1,5 @@
 # Build stage
-FROM node:20-alpine AS builder
+FROM node:22-alpine AS builder
 
 # Install build dependencies