revert: "build: Migrate to Vite 🚀" (#6814)

Revert "build: Migrate to Vite 🚀 (#6713)"

This reverts commit e93bbc5776.

src/excalidraw-app/sentry.ts

@@ -7,7 +7,7 @@ const SentryEnvHostnameMap: { [key: string]: string } = {
 };
 
 const REACT_APP_DISABLE_SENTRY =
-  import.meta.env.VITE_APP_DISABLE_SENTRY === "true";
+  process.env.REACT_APP_DISABLE_SENTRY === "true";
 
 // Disable Sentry locally or inside the Docker to avoid noise/respect privacy
 const onlineEnv =
@@ -21,7 +21,7 @@ Sentry.init({
     ? "https://7bfc596a5bf945eda6b660d3015a5460@sentry.io/5179260"
     : undefined,
   environment: onlineEnv ? SentryEnvHostnameMap[onlineEnv] : undefined,
-  release: import.meta.env.VITE_APP_GIT_SHA,
+  release: process.env.REACT_APP_GIT_SHA,
   ignoreErrors: [
     "undefined is not an object (evaluating 'window.__pad.performLoop')", // Only happens on Safari, but spams our servers. Doesn't break anything
   ],