Review and refactor ts-scripts sync

[busma13]

While working on #3823 I ran into an issue where sync assumes that we will be using a minor range(^), so yarn sync failed when it changed all the ~ back to ^.

We at minimum need to convert sync to expect a patch range, but we have run into other problems with sync doing things we did not expect recently.
If we can review the code and determine what functionality is still needed, and it doesn't look to difficult to separate it out and discard the rest, that would be best.

[busma13]

After taking a look, we are going to remove generateTSConfig and executeHook from the sync command. The tsconfig is easy to update and executeHook is not used anywhere.

[godber]

Closed by #3831