Fix to the responsive video player

[aakash-a-dev]

PR Fixes: For this

This video player is made under VideoJS file but it doesn't worth it so here the approach that I hidden the skip 15 forward & skip 15 backward button in mobile responsive mode in Portrait but on landscape mode this buttons are visible

In Portrait Mode:

In Landscape Mode:

Resolves #360

Checklist before requesting a review

• [ ✔️] I have performed a self-review of my code
• [✔️ ] I assure there is no similar/duplicate pull request regarding same issue