Replace Karma browser test runner

[slvrtrn]

Karma is EOL and deprecated.

It was chosen as there is a lot of documentation and available features, but ultimately we need to replace it with something more modern.

There is a couple of projects they mention as possible replacement:

• Web Test Runner
• jasmine-browser-runner

Minimal requirements (out of the box or via plugins):

• Typescript support
• Jasmine support
• Typescript paths support