[BUG] 6.5.1 Toast - ContentClassName prop should be optional

[jafin]

I'm submitting a ...

[x] bug report

Current behavior
A change in 6.5.1 made the property contentClassName mandatory. For other controls this is an optional property, it would be beneficial to be consistent.

Expected behavior
Should be optional and defaulted if requires a value. (similar to other controls)

For example, TabPanel defaults contentClassName to null and the property is optional on the interface

    static defaultProps = {
        header: null,
        headerTemplate: null,
        leftIcon: null,
        rightIcon: null,
        disabled: false,
        headerStyle: null,
        headerClassName: null,
        contentStyle: null,
        contentClassName: null
    }

export interface TabPanelProps {
    header?: React.ReactNode;
    headerTemplate?: TabPanelHeaderTemplateType;
    leftIcon?: string;
    rightIcon?: string;
    disabled?: boolean;
    headerStyle?: object;
    headerClassName?: string;
    contentStyle?: object;
    contentClassName?: string;
}

• PrimeReact version:
  6.5.1

[mcandu]

Thank you for your feedback.

Best Regards.