v31.5.0

• Added isLoading prop and added EuiOverlayMask directly to EuiConfirmModal (#4421)
• Added wrapWithTableRow to remove <tr> in EuiTableHeader(#4465)

Bug fixes

• Fixed id usage throughout EuiTreeView to respect custom ids and stop conflicts in generated ids (#4435)
• Fixed EuiTabs role if no tabs are passed in (#4435)
• Fixed issue in EuiDataGrid where the horizontal scrollbar was hidden behind pagination (#4477)
• Fixed EuiPopover with initial isOpen working with EuiOutsideClickDetector (#4461)
• Fixed EuiDataGridCellPopover needing 2 state updates to close (#4461)
• Fixed EuiBadge with iconOnClick from catching form submit events (#4479)