Refactor wall presence sensor components and add new widgets for improved functionality and clarity to ensure reusability in the future for other devices.

lib/pages/routines/widgets/function_slider.dart

@@ -0,0 +1,26 @@
+import 'package:flutter/material.dart';
+
+class FunctionSlider extends StatelessWidget {
+  final dynamic initialValue;
+
+  final (double min, double max) range;
+  final void Function(double value) onChanged;
+
+  const FunctionSlider({
+    required this.onChanged,
+    required this.initialValue,
+    required this.range,
+    super.key,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return Slider(
+      value: initialValue is int ? initialValue.toDouble() : range.$1,
+      min: range.$1,
+      max: range.$2,
+      divisions: (range.$2 - range.$1).toInt(),
+      onChanged: onChanged,
+    );
+  }
+}