Description:

This pull request adds a feature to save and load the user's volume preference in the video player using localStorage.

• Resolves feature: Saving the volume settings #1671

Changes Made:

• Retrieve saved volume level from localStorage during initialization.
• Save the volume level in localStorage whenever it changes.
• Apply a default volume level if no preference exists.

Checklist before requesting a review:

• I have performed a self-review of my code.
• There is no duplicate pull request for this issue.

Feedback:

Feel free to provide any suggestions or improvements. Your feedback is highly appreciated!
This is my first PR :)