Add existing logos from BrandingResources

.github/workflows/ci-testing.yaml

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+# This is the workflow for testing the code quality:
+# Check formatting of Markdown, YAML, TOML, etc. files
+
+name: Check formatting
+
+on:
+  # Trigger the workflow on push
+  push:
+    # Every branch
+    branches:
+      - '**'
+    # But do not run this workflow on creating a new tag starting with 'v', e.g. 'v1.0.3' (see pypi-publish.yml)
+    tags-ignore:
+      - 'v*'
+  # Trigger the workflow on pull request
+  pull_request:
+    branches:
+      - '**'
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+# Allow only one concurrent workflow, skipping runs queued between the run in-progress and latest queued.
+# And cancel in-progress runs.
+concurrency:
+  group:
+    ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  # Job: Check code quality and consistency
+  code-quality:
+    strategy:
+      matrix:
+        os: [ubuntu-latest]
+
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Install npm dependencies
+        # Install 'prettier' for code formatting of Markdown, YAML, etc. files
+        # Install 'prettier-plugin-toml' plugin for code formatting of TOML files
+        run: npm install prettier prettier-plugin-toml --save-dev --save-exact
+
+      # Check formatting of Markdown, YAML, TOML, etc. files with Prettier in the project root
+      - name: Check formatting of Markdown, YAML, TOML, etc. files
+        id: check_formatting
+        continue-on-error: true
+        run: npx prettier . --check --config=prettierrc.toml
+
+      - name: Suggestion to fix non-code formatting issues (for *.md, etc.)
+        if: steps.check_formatting.outcome == 'failure'
+        run:
+          echo "In project root run 'npx prettier . --write
+          --config=prettierrc.toml' and commit changes to fix issues."
+
+      - name: Force fail if check formatting step failed
+        if: steps.check_formatting.outcome == 'failure'
+        run: exit 1

.gitignore

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+# Jupyter
+.ipynb_checkpoints
+
+# macOS
+.DS_Store
+
+# npm
+node_modules
+
+# PyCharm
+.idea/

.prettierignore

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+docs/assets