Repository: flutter
Issue: `Slider` with transparent track colors and custom `trackHeight` cannot  reach the extreme ends  
Labels: c: regression,framework,f: material design,has reproducible steps,P2,team-design,triaged-design,found in release: 3.27

### Steps to reproduce

1. run the example code.
2. long-pressed to the indicator.
3. schroll to best left.

### Expected results

i can drag the indicator to the best left and right.

### Actual results

i can't drag the indicator to the best left and right.

### Code sample

```dart
import 'package:flutter/material.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Color Simulation',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({super.key});

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  double _value = 0.5;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Colors.black,
      body: SizedBox(
        width: MediaQuery.of(context).size.width,
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          crossAxisAlignment: CrossAxisAlignment.center,
          children: [
            Container(
              height: 44,
              width: 200,
              alignment: Alignment.centerLeft,
              child: Stack(
                alignment: Alignment.centerLeft,
                children: [
                  Container(
                    height: 4,
                    decoration: BoxDecoration(
                      gradient: LinearGradient(colors: [
                        Colors.red,
                        Colors.blue,
                      ]),
                      borderRadius: BorderRadius.circular(2),
                    ),
                  ),
                  SliderTheme(
                    data: SliderThemeData(
                      trackHeight: 44,
                      thumbColor: Colors.white,
                      activeTrackColor: Colors.transparent,
                      inactiveTrackColor: Colors.transparent,
                      thumbShape: RoundSliderThumbShape(
                        enabledThumbRadius: 12,
                        elevation: 4,
                      ),
                      overlayShape: RoundSliderOverlayShape(
                        overlayRadius: 24,
                      ),
                    ),
                    child: Slider(
                      value: _value,
                      onChanged: (newValue) {
                        setState(() {
                          _value = newValue;
                        });
                      },
                    ),
                  ),
                ],
              ),
            ),
            SizedBox(
              width: 50,
              child: Text(
                '${(_value * 100).round()}%',
                style: TextStyle(
                  color: Colors.white,
                  fontSize: 16,
                ),
                textAlign: TextAlign.end,
              ),
            )
          ],
        ),
      ),
    );
  }
}
```

### Screenshots or Video


https://github.com/user-attachments/assets/8d7b25fc-1db1-4685-88ac-5e848fd24a77



### Logs

_No response_

### Flutter Doctor output

```
zengyang@zengyangdeMac-mini lomod % flutter doctor -v
[✓] Flutter (Channel stable, 3.24.3, on macOS 14.0 23A344 darwin-arm64, locale en-CN)
    • Flutter version 3.24.3 on channel stable at /Users/zengyang/fvm/versions/3.24.3
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 2663184aa7 (4 months ago), 2024-09-11 16:27:48 -0500
    • Engine revision 36335019a8
    • Dart version 3.5.3
    • DevTools version 2.37.3
    • Flutter download mirror https://storage.flutter-io.cn

[✓] Android toolchain - develop for Android devices (Android SDK version 34.0.0)
    • Android SDK at /Users/zengyang/Library/Android/sdk
    • Platform android-34, build-tools 34.0.0
    • ANDROID_HOME = /Users/zengyang/Library/Android/sdk
    • Java binary at: /Applications/Android Studio.app/Contents/jbr/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 21.0.3+-79915917-b509.11)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 15.3)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Build 15E204a
    • CocoaPods version 1.15.2

[✓] Chrome - develop for the web
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Android Studio (version 2024.2)
    • Android Studio at /Applications/Android Studio.app/Contents
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 21.0.3+-79915917-b509.11)

[✓] VS Code (version 1.96.2)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 3.102.0

[✓] Connected device (6 available)
    • aasaaaa 11 aaaa (mobile)        • 00008030-0019082236E2802E • ios            • iOS 17.6.1 21G93
    • qqqqqqq1iPhone (mobile)         • 00008030-000171CE1168802E • ios            • iOS 18.2 22C152
    • iPhone 11 Pro Max (mobile)      • 00008030-000224190CE8802E • ios            • iOS 18.1.1 22B91
    • macOS (desktop)                 • macos                     • darwin-arm64   • macOS 14.0 23A344 darwin-arm64
    • Mac Designed for iPad (desktop) • mac-designed-for-ipad     • darwin         • macOS 14.0 23A344 darwin-arm64
    • Chrome (web)                    • chrome                    • web-javascript • Google Chrome 131.0.6778.205

[✓] Network resources
    • All expected network resources are available.

• No issues found!
```