Add Disable Feature to Toggler Widget

[sundaram123krishnan]

Requirement

In our pigg app, we encountered a scenario where it was necessary to disable the toggler based on user interactions. This functionality was crucial to ensure better control and flexibility within the app's user interface.

Implementation

To address this need, I implemented the disable feature for the Toggler widget in Iced. When disabled, the toggler prevents any interaction, thereby enhancing the overall user experience by providing more control over the UI components.

I have also incorporated this feature into the Tour example of Iced to showcase its functionality and usage.

Your feedback and suggestions for further improvements are highly appreciated!