[Feat]: Flash Light Toggle while streaming

[max4real]

Version

apivideo_live_stream: ^1.2.0

Environment that reproduces the issue

• Flutter version: 3.29.0
• apivideo_live_stream version: ^1.2.0
• Device: Android (tested on [Redme, android 14])
• Camera permission: Granted
• Camera usage: Handled via LiveStreamController.initializeCamera()
• Flash toggle attempt via: LiveStreamController.toggleFlash() (or custom method if applicable)

Use case description

We should be able to control the flash light while streaming

Proposed solution

Please add Flashlight toggle function.

Alternative solutions

No response