Showing too many instances can crash WebGL2 browser engine

[yGuy]

Describe the bug
A notebook with many different widgets can cause the browser to give up and "disable webgl" and thus basically disabling the widget until reload.

To Reproduce
Steps to reproduce the behavior:

1. Use a PC with a less powerful built-in GPU and outdated drivers.
2. Open an example notebook with lots of graph cells.
3. Expand/collapse the sidebar to invalidate the WebGL contexts
4. See error in console:

Expected behavior
The code should take into account that a browser might give up due to exhausted resources.

Desktop (please complete the following information):

• OS: Windows 1, Intel HD graphics on i5
• Edge