fix: Added blockfrost-js, lucid-cardano & mongoose package to srvExtP…

…ackages to prevent issue #49783 from happening. (#49938)

fixes #49783

### What?
Added the following packages to the server component exclusion list
which prevents these packages from going through the currently default
compile pipeline for apps that use the App Router. Packages added are:
"@blockfrost/blockfrost-js", "@jpg-store/lucid-cardano" and "mongoose".
(For instance, mongo was already in this exclusion list)

### Why?
These packages are required by the
"@emurgo/cardano-serialization-lib-nodejs" packages and break when not
added to this list while using the app router.

### How?
I've added these packages to the server-external-packages json file in
the Next.js package's lib directory.

packages/next/src/lib/server-external-packages.json

@@ -1,4 +1,6 @@
 [
+  "@blockfrost/blockfrost-js",
+  "@jpg-store/lucid-cardano",
   "@prisma/client",
   "@vercel/og",
   "@sentry/nextjs",
@@ -19,6 +21,7 @@
   "lodash",
   "mdx-bundler",
   "mongodb",
+  "mongoose",
   "next-mdx-remote",
   "next-seo",
   "pg",