This reverts commit 6324718b.

This reverts commit 3716524b.

Just change all imports and dependencies.

No longer needs babel, but requries an alpha version of the typescript plugin
for eslint 8 support

It only detects i18n.t by default

This has proper support for rollup while providing the same API.

This is what open-wc recommends now and uses in their @open-wc/testing package

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)