fix(tool_tip): stop propagation on escape key down

closes #8130

packages/eui/src/components/tool_tip/tool_tip.tsx

@@ -280,6 +280,7 @@ export class EuiToolTip extends Component<EuiToolTipProps, State> {
 
   onEscapeKey = (event: React.KeyboardEvent<HTMLSpanElement>) => {
     if (event.key === keys.ESCAPE) {
+      event.stopPropagation();
       this.setState({ hasFocus: false }); // Allows mousing over back into the tooltip to work correctly
       this.hideToolTip();
     }