Include yapl build step within local build script

[Julesssss]

Problem

YAPL isn't built correctly for newly cloned HybridApp repos. This is a bug that slows down engineers setup process (example).

Solution

• Include npm run grunt:build:shared in the local build script
• Remove the now-outdated instructions from the App README: '

- Remove the step from the workflows, as this is now redundant

FYI @staszekscp, this is a minor HybridApp build issue that can be worked on when your team has some availability

[melvin-bot]

Reviewing label has been removed, please complete the "BugZero Checklist".