This removes the 'show-image' (false by default) and removes the functionality
to show a user profile image in the logout dropdown.

We've never used this actively and want to clean things up, so remove it.

We match based on the tag name now and not on the namespace,
so revert this again so it's consistent with the other packages

So we only need to define it in one place.

Just to test if/how this works.
It now uses "dbp-auth" instead of "translation", which was the i18next default.

It always seems like the button is missing when loading the page and
expecting the button there based on experience.

Use "await JSONLD.getInstance()" instead

No longer needed

We can access that API without a token.

See issue #46

It was only used in the demo.

Replace with the event bus for now

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.

They were hardcoded in more places