change typescript module resolution to resolve typescript resolution …

[Qanpi]

…errors on build (#493)

Fixes #493

Proposed Changes

• change module resolution to 'node', bundler fails to properly resolve type imports for whatever reason
• change default function exports to const and default exports (again, seems to be necessary probably because of some unique bundler issue)

Additional Notes (optional)

[yevdyko]

FYI: While I was testing, I discovered the following. It seems that the changes in the default function export are not related to the failed build, but they can be updated too.

[yevdyko]

FYI @jamesrweb @Qanpi I played around a bit with tsconfig and the only thing that matters is defining the composite value as false, the module resolution type has no effect on build errors and works fine in a more modern option like bundler.