Update .env.e2e for Prisma compatibility and remove sensitive data

- Cleared VITE_SENTRY_DNS and VITE_GA_MEASUREMENT_ID values for security.
- Added comments for Prisma environment variable usage and connection

.env.e2e

@@ -1,7 +1,14 @@
 VITE_APP_TITLE="ReadList"
 VITE_APP_DESCRIPTION="Just logging tech resources I read."
 VITE_API_ENDPOINT=http://localhost:3000/api/
-VITE_SENTRY_DNS="sentrydns"
-VITE_GA_MEASUREMENT_ID="gagagaga"
+VITE_SENTRY_DNS=""
+VITE_GA_MEASUREMENT_ID=""
 JWT_SECRET=hiddensecretstringfoobar
-DATABASE_URL="mysql://root:[email protected]:3306/digital"
+# This was inserted by `prisma init`:
+# Environment variables declared in this file are automatically made available to Prisma.
+# See the documentation for more detail: https://pris.ly/d/prisma-schema#accessing-environment-variables-from-the-schema
+
+# Prisma supports the native connection string format for PostgreSQL, MySQL, SQLite, SQL Server, MongoDB and CockroachDB.
+# See the documentation for all the connection string options: https://pris.ly/d/connection-strings
+
+DATABASE_URL="mysql://root:[email protected]:3306/digital"