This fixes #18. Here is a short description of what I did:

Player Navigation & UX Improvements

Enhancements:

• Initial Focus: Focus now starts on the Play/Pause button instead of the progress bar when playback begins.
• OK/Enter: Pressing OK now reliably shows controls and focuses the Play/Pause button.
• Hidden Seek: Pressing Left/Right when controls are hidden now immediately seeks and shows the seekbar.
• Navigation: Fixed UP/DOWN navigation between the bottom row buttons (Chapters, Speed, etc.) and the progress bar.

Fixes:

• Menu Focus: Fixed an issue where focus was lost after closing menus (e.g., Audio, Quality).
• Hidden Focus Bug: Fixed a bug where invisible buttons retained focus after hiding controls, breaking keyboard shortcuts.

Tested on my Tv with Tizen 5.5✌️.