LeafletView/index: forward styles to webview

This is necessary in order to fix a crash with react-navigation we ran
into with a newer `react-native` version.

See:
react-native-webview/react-native-webview#1915 (comment)

Author: miallo

src/LeafletView/index.tsx

@@ -1,5 +1,5 @@
 import React, { useCallback, useEffect, useRef, useState } from 'react';
-import { WebView } from 'react-native-webview';
+import { WebView, WebViewProps } from 'react-native-webview';
 import {
   MapMarker,
   WebviewLeafletMessage,
@@ -49,6 +49,7 @@ export type LeafletViewProps = {
   zoom?: number;
   doDebug?: boolean;
   androidHardwareAccelerationDisabled?: boolean;
+  webviewStyle?: WebViewProps;
 };
 
 const LeafletView: React.FC<LeafletViewProps> = ({
@@ -65,6 +66,7 @@ const LeafletView: React.FC<LeafletViewProps> = ({
   zoom,
   doDebug,
   androidHardwareAccelerationDisabled,
+  webviewStyle,
 }) => {
   const webViewRef = useRef<WebView>(null);
   const [initialized, setInitialized] = useState(false);
@@ -218,6 +220,7 @@ const LeafletView: React.FC<LeafletViewProps> = ({
       allowUniversalAccessFromFileURLs={true}
       allowFileAccessFromFileURLs={true}
       androidHardwareAccelerationDisabled={androidHardwareAccelerationDisabled}
+      style={webviewStyle}
     />
   );
 };