Updating Sentry Example (#22)

Updating Sentry example with the following 

* Isomorphic function for initialization 
* Client / Server Error monitoring across example app  
* Client / Server Tracing 
* Session Replay functionality
* Theme updates for Sentry example

Author: codyde

templates/react/add-on/sentry/assets/src/app/global-middleware.ts

@@ -0,0 +1,25 @@
+import { createIsomorphicFn } from '@tanstack/start'
+import * as Sentry from "@sentry/react";
+import * as SentryServer from "@sentry/node";
+
+createIsomorphicFn().server(() => {
+    console.log('Sentry init server')
+    SentryServer.init({
+        dsn: import.meta.env.VITE_SENTRY_DSN,
+        tracesSampleRate: 1.0,
+        profilesSampleRate: 1.0,
+    })
+}).client(() => {
+    console.log('Sentry init client')
+    Sentry.init({
+        dsn: import.meta.env.VITE_SENTRY_DSN,
+        tracesSampleRate: 1.0,
+        profilesSampleRate: 1.0,
+        integrations: [
+            Sentry.replayIntegration({
+                maskAllText: false,
+                blockAllMedia: false,
+              })
+        ]
+    })
+})()