Add convenience functions, update Docker setup, and integrate Webpack for building WebRTC internals exporter (#3)

Reviewed-on: #3
Co-authored-by: Mirko Milovanovic <mir_ko@me.com>
Co-committed-by: Mirko Milovanovic <mir_ko@me.com>

.github/workflows/feature-pr-build.yml

@@ -1,4 +1,4 @@
-name: Build Docker Image for Pull Request
+name: Build Docker Images for Pull Request
 
 on:
   pull_request:
@@ -25,3 +25,13 @@ jobs:
           platforms: |
             linux/amd64
             linux/arm64
+      
+      - name: Build monolith Docker image
+        uses: docker/build-push-action@v6.13.0
+        with:
+          context: .
+          tags: ${{ github.repository_owner }}/${{ github.event.repository.name }}:${{ github.event.pull_request.number }}-monolith
+          file: ./Monolith.dockerfile
+          platforms: |
+            linux/amd64
+            linux/arm64