fix(root): Apply more TS fixes

Ensure that the repo builds after resolving all TS issue.
Also force @novu/shared resolution to v0.24.1 instead of v0.24.2.
The latter seems to be broken for the state of the code at the time.

chore(root): Add prepare-self-hosted-release.yml

Introduce the Prepare Self-hosted Release Github action.

chore(release): publish - ci skip