FSD: Widget MentorsWanted

[Quiddlee]

📝 Describe the refactoring task

Part of the issue #347

📍 Code location

src/widgets/mentors-wanted

✅ Definition of Done (DoD):

1. Refactor mentors-wanted.tsx's scss as following

• remove all parent selector & .card-content -> .card-content.
• change all possible values to variables if such exists.
• and everything in your opinion that needs to be refactored
• replace all element selectors by tag with class selector img -> .image

mentors-wanted.tsx

1. create unit test for mentors-wanted component inside the ui folder
2. encapsulate the https://github.com/rolling-scopes-school/tasks/tree/master/angular/mentoring link in src/app/const/index.ts -> LINKS constant