v4.0.442

## What's Changed
* `@remotion/media`: Add `objectFit` prop to `<Video>` by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/6924
* `@remotion/google-fonts`: Fix ignoreTooManyRequestsWarning option by @ytakahashi in https://github.com/remotion-dev/remotion/pull/6918
* `@remotion/studio`: Use `server.listen()` for port availability checks by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/6939
* `@remotion/studio`: Fix JSON editor sync during undo/redo by @tiwariaayu in https://github.com/remotion-dev/remotion/pull/6933
* `@remotion/studio`: Fix timeline playhead and tick flicker on zoom by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/6935
* `@remotion/studio`: Use streaming audio waveform in timeline by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/6931
* `@remotion/studio`: Lock cursor during InputDragger and Splitter drag by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/6929
* `@remotion/studio`: Don't show empty layer when there are no sequences by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/6932

## Internals
* `@remotion/design`: Add theme defaults to register CSS by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/6938

## Docs
* Add troubleshooting page for CSS animations by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/6936
* Mention bt709 as default colorSpace in 5.0 migration guide by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/6925

## Internal
* `@remotion/promo-pages`: Rename Prompt Gallery to Prompt Showcase by @JonnyBurger in https://github.com/remotion-dev/remotion/pull/6926

**Full Changelog**: https://github.com/remotion-dev/remotion/compare/v4.0.441...v4.0.442