add icon in searchable mode

[SarvaDev-123]

Please provide any props to add a custom icon inside in searchable mode.
Can we change the arrow back icon with an arrow-forward icon when a search is active for left element

[saurabh874]

add this I18nManager package in react-native and
const SEARCH_FORWARD_ICON = I18nManager.isRTL ? 'arrow-back' : 'arrow-forward';
at line 37 in this file location node_modules/react-native-material-ui/src/Toolbar/LeftElement.react.js .

@xotahal @Ehesp can we this fixed in project?