Add ability to disable webtorrent

client/src/assets/player/peertube-videojs-typings.ts

client/src/assets/player/webtorrent/webtorrent-plugin.ts

config/default.yaml

config/production.yaml.example

package.json

scripts/optimize-old-videos.ts

scripts/prune-storage.ts

scripts/update-host.ts

server/controllers/api/config.ts

server/controllers/api/videos/index.ts

server/controllers/static.ts

server/helpers/custom-validators/activitypub/videos.ts

server/helpers/database-utils.ts

server/helpers/ffmpeg-utils.ts

server/helpers/video.ts

server/helpers/webtorrent.ts

server/initializers/checker-after-init.ts

server/initializers/config.ts

server/initializers/constants.ts

server/initializers/migrations/0065-video-file-size.ts