Add an optional 'tootipText' property to EuiListGroupItem so that the text of the tooltip can be overridden

[qpointsystems]

EuiListGroup components can be used in various contexts. One common usage is in the context of a Menu where the EuiListGroup's listItems property contains a list of menu items (EuiListGroupItem instances) represented under a Group(er).

The EuiListGroupItem is used to represent an individual Menu item/action. EuiListGroupItem currently has a required 'label' property which forms the text of the Menu Item displayed on the UI. Users have the optional ability for a given EuiListGroupItem of setting the showToolTip property to true. Setting showToolTip to {true} has the effect of displaying a Tooltip next to the menu item.

Current Eui behavior as of 62.1.0 has the text that is displayed in the EuiListGroupItem's ToolTip set to the value of the 'label' property. This is fine as a default value. But this behavior has limited utility from a UIX pov. Re-displaying in a ToolTip the label that is in most cases Already being displayed to the user seems redundant. True, there is a situation where the EuiListGroupItem's value text is 'hidden', and only the Icon is displayed. In that case, the Tooltip is available to indicate to the user the Action or behavior of the EuiListGroupItem's Icon.

Adding a 'toolTipLabel' or 'toolTipText' will allow users of the EuiListGroup and EuiListGroupItem components to provide contextual help/guidance beyond simply repeating the typically already visible EuiListGroupItem.label.

[spzala19]

Thanks for the details. Let me work on it.