Replace with the event bus for now

This fixes a typescript problem and allows us to enable type checking
in the typescript-example package (by removing the ts-nocheck comment)

In case the login process takes some time we would show a "login"
button which makes the user try to click it. There is a good chance
that aroudn that time we get logged in, so the click will log the user
out.

Avoid that by not showing anything during logging in.

lerna complains about this

And remove the custom publish commands

Takes a package name and a dest path. This way we can more eassily change the
layout and it will error out on package name typos or missing packages.

They were hardcoded in more places

Add a scope so we don't have to care about naming conflicts
and set the verison to 0.1.0 since we don't have a stable API yet.

While it's nice to have a fixed chrome version it slows down the yarn install,
downloads a lot of things, and the chrome version depends on various
system packages so one needss to have chromium installed anyway.

This means developers that want to work on tests need firefox and chdomium installed.

Sadly I couldn't find a way to make browsers optional in case the developer
only has one installed.

Use tdd in all cases to be more consisstend.
Also since last year we can use chai with rollup directly, so
do that everywhere instead of relying on karma-chai injecting
it in to the global scope.

not supported in firefox 68

The keycloak library currently only sends us an event in case the token
is about to expire, which is problematic because there is a time window
where we don't have a new token yet and on mobile the timers used
might be suspended and come too late.

To avoid this we check every 10 seconds that the token is valid for 30
and to work around suspended timers we also check on "visibilitychange"
which should trigger then the website gets visible again after the browser
sleeps.