make sure the webfrontend is packaged and uploaded to each release for manual installation.

.github/workflows/release-frontend.yaml

@@ -0,0 +1,35 @@
+# compiles angular frontend and attaches it to the latest release.
+name: Release Frontend
+
+on:
+  release:
+    # Only use the types keyword to narrow down the activity types that will trigger your workflow.
+    types: [published]
+jobs:
+  release-frontend:
+    name: Release Frontend
+    runs-on: ubuntu-latest
+    container: node:lts-slim
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          ref: ${{github.event.release.tag_name}}
+      - name: Build Frontend
+        run: |
+          cd webapp/frontend
+          npm install -g @angular/cli@9.1.4
+          npm install
+          mkdir -p dist
+          ng build --output-path=dist --deploy-url="/web/" --base-href="/web/" --prod
+          tar -czf scrutiny-web-frontend.tar.gz dist
+      - name: Upload Frontend Asset
+        id: upload-release-asset3
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.SCRUTINY_GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ github.event.release.upload_url }} # This pulls from the CREATE RELEASE step above, referencing it's ID to get its outputs object, which include a `upload_url`. See this blog post for more info: https://jasonet.co/posts/new-features-of-github-actions/#passing-data-to-future-steps
+          asset_path: scrutiny-web-frontend.tar.gz
+          asset_name: scrutiny-web-frontend.tar.gz
+          asset_content_type: application/octet-stream