feat(register): always resolve full file path for tsconfig and add paths if available

[dmregister]

Addresses #626

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[dmregister]

@Brooooooklyn I'm not sure how these snapshots work. I added the snapshot file on the last commit and it failed as it was not used. Once I deleted it, now it's failing cause it's missing. Any idea how to resolve this? I do not get the error locally.

[dmregister]

@Brooooooklyn let me know if this PR needs anything else or if I need to split this up into 2 PR's

1. for the paths updates
2. fully resolve tsConfig path