[BUGFIX] fixed various bugs

- list column width adjustments
- list fullwidth bug
- activities columns
- account-contact overlay bugfix
- multiple display of the same account in contact list when assigned multiple companies
- ui bug in bank account form
- ui bug in widget when no phone is present for the main account
- bugfix when adding addresses 

__Tasks:__

- [ ] gather feedback for my changes

__Informations:__

| Q             | A
| ------------- | ---
| Tests pass?   | none
| Fixed tickets |  https://github.com/massiveart/POOL-ALPIN/issues/80 https://github.com/massiveart/POOL-ALPIN/issues/79 https://github.com/massiveart/POOL-ALPIN/issues/80 https://github.com/massiveart/POOL-ALPIN/issues/69 https://github.com/massiveart/POOL-ALPIN/issues/77
| Doc           | none