v31.10.0

• Added panelProps to EuiPopover (#4573)
• Updated the default of the EuiPopovers ownFocus prop from false to true (#4551)
• Added src prop to EuiImage as an alternative to url (#4611)
• Added EuiSplitPanel component (#4539)

Bug fixes

• Fixed hover effect of nested clickable rows in EuiBasicTable (#4566)
• Fixed visual bug in drag&drop sections when nested in an popover (#4590)
• Fixed an errant export of EuiSideNavProps type from JS code (#4604)
• Fixed misaligned EuiComboBox options list (#4607)
• Fixed missing forwardRef on EuiHeaderSectionItemButton (#4631)