Update to version 4.1.0 with multiple enhancements and bug fixes

[abdelaziz-mahdy]

Description: This pull request updates the package to version 4.1.0, which includes several enhancements and bug fixes. The major changes are:

• Fixed the issue of assets playing without asset:// by adding it if not already added.
• Added a custom controls widget in video player that allows users to customize the player's UI.
• Added the ability to define the size of buttons from meeduPlayerController Defining the responsive variable.
• Updated the example to explain each page in detail.