Fix issues with subtitle rendering

package-lock.json

package.json

src/routes/player/Player.tsx

src/routes/player/subtitles/AssRenderer.tsx

src/routes/player/subtitles/TtmlHelper.ts

src/util/subtitles/ass/SubtitlesOctopus.ts

src/util/subtitles/ass/SubtitlesOctopusOptions.ts

src/util/subtitles/ass/browserHasAlphaBug.ts

src/util/subtitles/ass/browserSupportsWebAssembly.ts

src/util/subtitles/ttml/doc.js

src/util/subtitles/ttml/html.js

src/util/subtitles/ttml/isd.js

src/util/subtitles/ttml/ismc.ts

src/util/subtitles/ttml/names.js

src/util/subtitles/ttml/styles.js

src/util/subtitles/ttml/utils.js