Release 1.46.2

This is a small release, fixes only. The one that matters:

The video stopped playing twice. In the canvas, when the voice assistant speaks, whatever you're watching gives up the sound and gets it back on its own when she's done. Except sometimes it came back doubled: two videos at once, at different points, with a pause button for only one of them.

The cause wasn't the app opening a second player. It's that a YouTube page keeps more than one video: besides the one you're watching, there's the one that rolls when you hover a thumbnail, muted on purpose. When handing the sound back, the canvas handed it to all of them, and woke the one nobody asked for. Now the only thing that comes back is the video you opened.