Angular - links updates in tasks/modules plus note about design and standalone/modules architecture

[lyutails]

hey there o/

• noticed outdated links and updated them in tasks and modules to lead to the new angular.dev site
• plus added note in second task that design and colour scheme of the app maybe one in one as offered or by a student's taste

plus agree with this statement

https://angular.dev/guide/components/importing

• so added in components task notice that in future tasks students will be asked to create some ngmodules if they have never dealt with to know how to work with legacy code

• and reformulated in modules services routing task requirement of transforming the whole app into fully ngmodules approach to requirement that some of the components can be ngmodules based on mentors final desicion

• added youtube link about shared modules can be considered as antipattern

• also we had Tests mentioned as Practical assignment in one of the modules, so added them to others too

• ⚙️ Update to an existing task

• 🔧 Update to an existing module

[dzmitry-varabei]

@lyutails thanks again! :)