Fix lint issues and improve type safety

src/types/index.ts

@@ -1,3 +1,5 @@
+import type { CSSProperties, RefObject } from 'react'
+
 export interface SubtitleTrack {
   src: string
   lang: string
@@ -39,7 +41,7 @@ export interface VideoPlayerProps {
   keyboardShortcuts?: boolean
   pictureInPicture?: boolean
   className?: string
-  style?: React.CSSProperties
+  style?: CSSProperties
   onPlay?: () => void
   onPause?: () => void
   onEnded?: () => void
@@ -85,8 +87,8 @@ export interface PlayerContextValue {
   videoState: VideoState
   uiState: UIState
   settings: PlayerSettings
-  videoRef: React.RefObject<HTMLVideoElement>
-  containerRef: React.RefObject<HTMLDivElement>
+  videoRef: RefObject<HTMLVideoElement>
+  containerRef: RefObject<HTMLDivElement>
 
   // Video controls
   play: () => void