The `XDGAppPaths` project has undergone a full conversion to TypeScript.

CJS and ESM packages, as well as the associated type declarations, are generated from
the source TypeScript and are then packaged and stored within the project repository
(ie, a 'dist' model).

Exports are now all declared via 'exports' in the package configuration file (but with
continued support for older non-'exports' aware tooling). And all project exports/packages
are available both directly from the project repository or via various distributors
(jsdelivr, npmJS, ...).