WIP: Fe release verify package handbook page updates

As part of onboarding, there is a task to make a change to the handbook. Not sure if this counts as enough of an update, but my idea was change the current (FE Verify & Release)[https://about.gitlab.com/handbook/engineering/development/ci-cd/fe-verify-release/] page to include Package too.

I also changed the ordering of the name to match the job title: Frontend Engineering Manager, Release (CD), Verify (CI) & Package.

A lot of these pages seem to be a WIP so I've included a little bit of information that I know about but the page is still incomplete and needs further filling out (which I could populate as I discover this information).