Add routes to serve manifest.json and service worker; update manifest link in base.html

Web/app.py

@@ -10926,3 +10926,11 @@ def test_push_notification():
     except Exception as e:
         app.logger.error(f'Error sending test push: {e}')
         return jsonify({'success': False, 'error': str(e)}), 500
+
+@app.route('/manifest.json')
+def serve_manifest():
+    return send_from_directory('static', 'manifest.json', mimetype='application/manifest+json')
+
+@app.route('/sw.js')
+def serve_sw():
+    return send_from_directory('static', 'sw.js', mimetype='application/javascript')

Web/templates/base.html

@@ -14,7 +14,7 @@
     <meta name="mobile-web-app-capable" content="yes">
     <meta name="apple-mobile-web-app-capable" content="yes">
     <meta name="apple-mobile-web-app-status-bar-style" content="black-translucent">
-    <link rel="manifest" href="{{ url_for('static', filename='manifest.json') }}">
+    <link rel="manifest" href="/manifest.json">
     <meta name="csrf-token" content="{{ csrf_token }}">
     <title>{% block title %}Inventarsystem{% endblock %}</title>
     {% block head %}