React Select field should gracefully handle multiline options

[arky]

Describe the bug Volto React-Select multiselect containers tend to stretch to accommodate all options text. There are no limits set on option width by default.

To Reproduce Steps to reproduce the behavior:

1. Create a multi-select input container
2. Add multiple selection option that span two or three lines (multi-line)
3. When you render a edit form, the form will extend wide till the whole screen.

Expected behavior The multi-select option should trim the content with text-overflow ellipse

WorkAround Add stop gap CSS overrides

.react-select__multi-value__label{
    max-width: 35vw;
    overflow: hidden;
    text-overflow: ellipsis;
}

Software (please complete the following information):

• OS: Ubuntu gnu/Linux
• Browser Firefox
• Volto Version 14.x
• Plone Version 6.x

[tiberiuichim]

@arky this looks like a potential PR.