As reported in elastic#55184, the service map is completely broken in IE. This is because IE has some bugs around SVG that cause a runtime error.

This change detects IE 11 and does not render those problematic icons.

The result is a map that has the shapes but no SVG icons in them: https://www.dropbox.com/s/o7hp73yv5klpfqd/Screenshot%202020-01-24%2009.27.54.png?dl=0

We'll follow up in a future release with a fix to show the icons, but this makes it so the map is functional in IE.

Fixes elastic#55184.