Quickstart fixes

Changes

Fixes Quickstart bugs and updates:

• 1st fixed bug: lack of sudo on some commands.
• 2nd fixed bug: pointed to pinned version of ingress cert that could be expired was updated to point to latest version of *.bigbang.dev, so even if you're using quickstart to deploy an old version of BigBang, the ingress cert will deploy correctly.
• Update: BB from 1.15.0 --> 1.17.0

Known issues or expected conflicts?

No conflicts, Closes #808 (closed) #809 (closed)