feat(YouTube Music): add `light mode` patch

[akashsriramganapathy]

Application

YouTube Music

Feature description

I would like to request the implementation of a Light Mode or White Mode in YouTube Music. Currently, the platform primarily offers a Dark Mode, which is great for low-light environments. However, having the option to switch to a lighter theme would be beneficial for users who prefer a brighter interface, especially in well-lit surroundings.

Motivation

• User Preference: Many users have different preferences when it comes to the appearance of the interface. Providing a Light Mode option would allow users to choose the theme that best suits their preferences and comfort.
• Accessibility: Lighter themes can enhance readability, particularly for users with visual impairments or those who find dark interfaces straining on their eyes.
• Adaptability: Some users may prefer a light theme during the day and a dark theme at night. Offering both options provides users with the flexibility to adapt the interface to their specific needs at any given time.

Acknowledgements

• [X] This is not a feature request for YouTube.
• [X] This issue is not a duplicate of an existing feature request.
• [X] I have chosen an appropriate title.
• [X] All requested information has been provided properly.
• [X] I have written the title and contents in English.

[What-Zit-Tooya]

@inotia00 2nd to support this, looks nice especially playing music in public transportations. For simplified patch, maybe you can make it inside theme patch options.json like you did for custom branding patch. So, we can only put Light in options.json and include Theme patch to applied it.