use consistent tooltip delay

src/components/OpenFileButton.tsx

@@ -5,6 +5,7 @@ import { Button, Intent, Position, Tooltip } from '@blueprintjs/core';
 import { WithI18nProps, withI18n } from '@shopify/react-i18n';
 import React from 'react';
 import Dropzone, { FileRejection } from 'react-dropzone';
+import { tooltipDelay } from '../settings/ui';
 import { TooltipId } from './button-i18n';
 import en from './button-i18n.en.json';
 
@@ -81,6 +82,7 @@ class OpenFileButton extends React.Component<Props> {
                     <Tooltip
                         content={this.props.i18n.translate(this.props.tooltip)}
                         position={Position.BOTTOM}
+                        hoverOpenDelay={tooltipDelay}
                     >
                         <Button
                             {...getRootProps()}