[ENH] Rollback Integration

[b-jonathan]

Is your feature request related to a problem?
Right now, when a init run breaks, it leaves scattered folders everywhere. Best practice is to remove the project when something goes wrong

Describe the solution
Rollback function that undos all previous actions

Describe alternatives if applicable
Manual deletion, bad and not good developer experience

Notes
For now, focus on deleting frontend and backend steps first, then move to db, then move to firebase

[b-jonathan]

In stack/types.go, add a new Rollback() function that takes in a ctx and opts parameter, returns an error

Start with Frontend/Backend (so Nextjs and Express packages):

Implement the Rollback function. This should just be rm -rf ing the folders that were created, use dynamic routing (which should just be projectRoot/backend or projectRoot/frontend)

In the cli/root.go file, add some error validation where if an error is received at any step of the process, break process early and run the respective RollBack functions. You may need to comment out the db and auth or just select none for those two

If you need to run CLI commands, use the RunCmd() command in the execx package.

If you need to make a new file helper to delete files programmatically, add a new function in the fsutil package.