v31.8.0

• Reverted part of #4509 and returned EuiDataGrid's background content area to an empty shade (#4542)
• Added exports for all EUI component props matching EuiComponentProps name pattern. (#4517)
• Added truncate, disabled, and emphasize props to EuiSideNavItem (#4488)
• Added truncate prop to EuiSideNav (#4488)
• Added support for all colors of EuiPanel (#4504)
• Added hasBorder prop to EuiPanel (#4504)
• Added labelProps prop to EuiRadio, EuiSwitch and EuiCheckbox (#4516)
• Added isDisabled prop to EuiAvatar (#4549)

Bug fixes

• Removed home and end key configured behavior from EuiSelectable (#4560)
• Fixed nested indicator of last EuiSideNav item (#4488)
• Fixed override possibility of text color in EuiSideNavItem (#4488)
• Fixed blurry animation of popovers in Chrome (#4527)
• Fixed styles of disabled times in EuiDatePicker (#4524)
• Fixed disabled text color form fields in Safari (#4538)
• Removed static id from EuiQuickSelectPopover (#4543)
• Fixed support sever side rendering for EuiDataGrid (#4540)

Theme: Amsterdam

• Removed letter-spacing from euiFont Sass mixin (#4488)