[FEATURE] improved item table and editable row component

__Tasks:__
- [x] done
- [ ] got feedback

__Informations:__

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | yes
| Tests pass?   | yes
| Fixed tickets | none
| Doc           | none

why not adding the m-bottom-40 class to the div below?
btw.: actually the layout is just broken because of a bug in husky's grid. (which should be fixed by erfan asap)