Update WebOsVideo.js

[cmax24]

• Improves webOS compatibility by updating codec handling, event logic, and capability detection.
• Fixes incorrect event handler usage by replacing canplaythrough with the correct oncanplaythrough event.
• Adds enhanced codec capability detection, combining EDID checks and webOS.deviceInfo() to properly enable model‑specific codecs (e.g., DTS, DTS‑HD, DTS:X, AC‑4).
• Introduces codec normalization, mapping inconsistent codec labels (e.g., “DTS‑HD MA”, “TrueHD Atmos”) into unified identifiers so the filtering logic works consistently.
• Implements probe‑and‑fallback logic for audio tracks: when selectTrack fails, the codec is marked as unsupported and the player automatically falls back to a compatible track.
• Adds playback‑speed gating: setPlayRate now applies only to progressive sources (MP4/MKV), avoiding failures on HLS/DASH streams which do not support rate changes reliably.
• Increases robustness of mediaId acquisition with extended retry logic (12 attempts ≈ 3.6s).
• Reduces event noise via buffered‑event throttling (250 ms).
• Adds optional forceEnableCodecs parameter for advanced/edge‑case configurations (e.g., rooted TVs or known‑supported codecs not advertised by EDID).
• Keeps full backward compatibility with previous webOS versions and existing app behavior.