Help teams to use the onboarding / offboarding issue

### Overview
We need all the teams to use the same onboard / offboard process so that we can keep our resources secure and be able to find recently offboarded people from the organization easily.

### Action Items
- [ ] Audit all teams
- [ ] Create messaging for teams that are not the using the process
- [ ] Make sure the template on each team that is using it, is up-to-date
- [ ] Rationalize the labels to feature: onboard / offboard

### Resources/Instructions
- [Product Management WIKI, onboard/offboard overview](https://github.com/hackforla/product-management/wiki/Onboard-Offboard)
- [Active project list issue](https://github.com/hackforla/product-management/issues/321)