Move pushEvent inside MatomoElement, make sure event name is non-empty string and add extra handling for TypeError

This prevents eslint from traversing the parent directories. In
the case there was a conflicting eslint config in a parent directory it would
error out otherwise (like is the case in our apps)

Versions: Lit-Element to 2.4.0 and Lit-HTML to 1.3.0

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

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.

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.