feat(OnyxDataGrid): Render icons in flyout

[MajaZarkova]

Relates to #1939

When listItems are not set the icons will be rendered inside the flyout

Checklist

• The added / edited code has been documented with JSDoc

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[JoCa96]

Using the iconComponents (or rather the OnyxSystemButtons) inside the list creates a whole suite of issues:

• the hover effect behaves incorrectly
• there is no visual text label
• from UX side: I pretty sure OnyxSystemButton is not allowed to be used in the list

Either we

• add a new support component which renders to a OnyxSystemButton or listitem based on the context
• or we just make listItems a required property