feat: convert to pnpm monorepo (#1137)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

- **New Features**
- Introduced enhanced project management scripts for building, testing,
and deploying the monorepo.
- Added an automated testing pipeline for improved reliability of the
Libvirt functionality.
- Provided a new plugin installation script that ensures thorough
cleanup during removal.

- **Improvements**
- Updated container mappings and dependency configurations for more
stable and efficient operations.
- Refined web application settings and build commands for smoother
performance.
- Streamlined continuous integration workflows with optimized caching
and dependency management.
  - Updated allowed origins in configuration for enhanced security.

- **Chores/Refactor**
- Removed outdated configuration files to simplify maintenance and
enhance consistency.
- Enhanced event listener management in the web application for better
error handling.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

---------

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

package.json

@@ -0,0 +1,34 @@
+{
+  "name": "unraid-monorepo",
+  "private": true,
+  "scripts": {
+    "build": "pnpm -r build",
+    "dev": "pnpm -r dev",
+    "test": "pnpm -r test",
+    "lint": "pnpm -r lint",
+    "lint:fix": "pnpm -r lint:fix",
+    "check": "manypkg check"
+  },
+  "pnpm": {
+    "peerDependencyRules": {
+      "allowAny": [
+        "vue"
+      ]
+    },
+    "onlyBuiltDependencies": [
+      "@apollo/protobufjs",
+      "@nestjs/core",
+      "@parcel/watcher",
+      "@swc/core",
+      "@unraid/libvirt",
+      "cpu-features",
+      "esbuild",
+      "nestjs-pino",
+      "ssh2",
+      "vue-demi"
+    ]
+  },
+  "dependencies": {
+    "@manypkg/cli": "^0.23.0"
+  }
+}