Answer:1 - angular content projection

[alcaidio]

Checklist for challenge submission

• [x] Start your PR message with Answer:${challenge_number}

Some notes about the code

• refactor state services with signal and reduce duplication with a generic service.
• removal of unnecessary folders
• use of new syntax (input, output, contentchild, controlflow) angular 17
• use of ng-content and ngtemplateoutlet with typed context using a directive, inspired by the article of @tomalaforge.
• one problem: can't use *appItem syntax shortcut (see teacher card)

[tomalaforge]

very good and very complete solution