Timeline view intermittently disappears on windows web-view

[jleibs]

This happens consistently on all of Edge, Chrome, and Firefox.

The behavior is 100% deterministic as a function of timeline position.

Easy to reproduce with the api demo.

rerun.viewer.-.Profile.1.-.Microsoft.Edge.2023-02-11.05-06-55.mp4

Different weird artifacts in the colmap demo:

rerun.viewer.-.Profile.1.-.Microsoft.Edge.2023-02-11.05-22-19.mp4

[jleibs]

This was root-caused to: gfx-rs/wgpu#3589