fix: React native docs

Author: wsdt

docs/platforms/react-native/tracing/instrumentation/react-native-navigation.mdx

@@ -17,10 +17,10 @@ import { Navigation } from 'react-native-navigation';
 Sentry.init({
   dsn: "___PUBLIC_DSN___",
   integrations: [
-    Sentry.reactNativeNavigationIntegration({
-      navigation: Navigation,
-    }),
-  ],
+            new Sentry.ReactNativeTracing({
+                routingInstrumentation: navigationIntegration,
+            }),
+        ],
 })
 ```
 
@@ -29,26 +29,16 @@ Sentry.init({
 You can configure the instrumentation by passing an options object to the constructor:
 
 ```javascript
-Sentry.reactNativeNavigationIntegration({
-  navigation: Navigation, // Navigation from `react-native-navigation`
-  routeChangeTimeoutMs: 1_000, // default: 1_000
-  enableTabsInstrumentation: true, // default: false
-  ignoreEmptyBackNavigationTransactions: true, // default: true
+const navigationIntegration = new Sentry.ReactNavigationInstrumentation({
+    enableTimeToInitialDisplay: true,
+    routeChangeTimeoutMs: 1_000, // default: 1_000
 });
 ```
 
-### navigation
-
-This option is required and should be the `Navigation` object imported from the navigation library.
-
 ### routeChangeTimeoutMs
 
 This option specifies how long the instrumentation will wait for the route to mount after a change has been initiated before the transaction is discarded. The default value is `1_000`.
 
 ### enableTabsInstrumentation
 
 This instrumentation will create a transaction on tab change. By default, only navigation commands create transactions. The default value is `false`.
-
-### ignoreEmptyBackNavigationTransactions
-
-This ensures that transactions that are from routes that've been seen and don't have any spans, are not being sampled. This removes a lot of clutter, making it so that most back navigation transactions are now ignored. The default value is `true`.