Update JSX and fix bugs

src/App.test.tsx

src/App.tsx

src/index.tsx

src/routes/ContentRoute.tsx

src/routes/main/MainPage.tsx

src/routes/player/Player.tsx

src/routes/player/PlayerError.tsx

src/routes/player/PlayerLoading.tsx

src/routes/player/PlayerPage.tsx

src/routes/player/PreviewBar.tsx

src/routes/player/PreviewViewer.tsx

src/routes/player/SeekBar.tsx

src/routes/player/subtitles/TtmlRenderer.tsx

src/routes/player/video/DashVideoElement.tsx

src/routes/player/video/RawVideoElement.tsx

src/routes/player/video/VideoElement.tsx

src/util/head/HeadPortal.tsx

src/util/media/useTextTrackCues.ts

tsconfig.json