Add toggle fullscreen functionality

[muhammadcahya]

Description

Hi @satnaing, I apologize in advance, I didn't realize I had closed the pull request when I synced my repository LOL Here updated script to improve compatibility on any device, I don't use third party for this, so you can read the dom mechanism, and you can clearly review the code again. Thank you

Types of changes

Added toggle fullscreen functionality

• [ ] Bug Fix (non-breaking change which fixes an issue)
• [x] New Feature (non-breaking change which adds functionality)
• [ ] Others (any other types not listed above)

Checklist

• [x] I have read the Contributing Guide

Related Issue

#75

Closes: #75

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[AliAkrem]

This feature is awesome, but there's an issue after toggling to full screen and navigating to another route, the toggle button remains fixed and doesn't allow exiting full screen until I press the Esc button. Screencast from 2025-03-07 12-49-34.webm

[satnaing]

Due to a few remaining bugs and inactivity, I'm closing this PR for now. Thanks for the PR tho! Appreciate it.