Update waspc/todoApp's tsconfig.json to 0.13.1 version

Add docs version 0.13.1

Adds versioned 0.13.0 docs (wasp-lang#1907)

Updates tag for starters (wasp-lang#1903)

Fixes tests for 0.13.0 RC (wasp-lang#1899)

Bump version to 0.12.4

Change version, update e2e tests, update Changelog

Updated Wasp version to 0.12.3   Mage to use it.

Updated waspc.cabal, ChangeLog and e2e test to 0.12.2.

Updated cabal, Changelog, and e2e tests to 0.12.1 .

Created a 0.12.0 version of docs.