bug(@vtmn/css): display issue for the vtmn-select_container when the text are too long

### Actual behavior
I am a developper in Myaccount Team, we have seen issues with the select (`.vtmn-select_container`).

1. The label is displayed only in one line but it is problematic for long translations for example. See the screenshot :

2. the option inside the select is too long and the display of the select goes out the window

### Expected behavior

1. allow a long label in multiples lines.

3. fix the display of the select when the option text is too long

To fix the issues, I have made this modifications in my code
- add a container around the select

- overwrite the following css

The code of the `::before` is the same as `.vtmn-select_container::before` except the position, float and inset-block-start

**Version affected**
"@vtmn/css": "^0.91.5",

You can contact me or Myaccount Team if you have any questions.

Thanks
Lionel