delete mobileFullscreen prop

[VasylHryha]

Description

I propose removing the mobileFullscreen feature, as it leads to unclear behavior. In examining other UI frameworks like Vuetifyjs, Native UI, and Quasar, I found that they typically adjust modals to fit the window width rather than using a fullscreen mode on mobile. I've implemented this behaviour here: #4093. As an alternative to mobileFullscreen, I recommend using the fullscreen prop, which offers clearer and more consistent functionality.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Improvement/refactoring (non-breaking change that doesn't add any feature but make things better)

[VasylHryha]

Yauheni Prakopchyk approved this change