Change name to description for editing + adding new job offers + extra work

Description

• When creating or editing a job offer or extra work, the previously called name field is now referred to as the description.
• This change is only on the front-end, it doesn't change any of the backend or database naming.

Related Issues

• Resolves #58 (closed)

Checklist

• I have added a changelog entry to reflect the significant changes I made.

changed milestone to %Working v2.0

added difficultylow typebug ui + 1 deleted label

requested review from @rbackx

assigned to @toberhuber

approved this merge request

started a merge train

merged

mentioned in commit 05549b07

unassigned @toberhuber