"Add new task" form modifications

[tammets]

• [ ] Introductory Info on the Task -> Introductory info on the task
• [ ] Input / Task Instructions -> Input / Task instructions
• [ ] Preferred Language of Completion -> Preferred language(s) of completion
• [ ] Target Area of Competence -> Target area of competence
• [ ] Key Notions -> Key notions

Preferred language(s) of completion

Users are able to choose more than one language.

Target area of competence

Text area -> tick boxes like Key notiions. Options are:

1. Language and cultures
2. Research, teaching and learning
3. Identity and role
4. Cooperation and development

Key notions list:

1. Agency
2. Autonomy
3. Collaboration
4. Culture
5. Diversity
6. Education
7. Educational culture(s)
8. Identity language(s) (home-, school-, own-languages and immersion)
9. Mediation
10. Pluri- / multi- / translingualism / translanguaging / translingual teaching
11. Reflective practice
12. Role(s)
13. Self-reflection and meta-reflection
14. Social and individual representation