Add UI checks to pre-commit and CI

.github/workflows/ci.yml

@@ -6,6 +6,7 @@ jobs:
     strategy:
       matrix:
         python-version: [3.7, 3.8, 3.9]
+        node-version: [14.x, 15.x]
     services:
       redis:
         image: redis
@@ -33,12 +34,18 @@ jobs:
       with:
         python-version: ${{ matrix.python-version }}
 
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v2
+      with:
+        node-version: ${{ matrix.node-version }}
+
     - name: Install dependencies & set up configuration
       run: |
         python -m pip install --upgrade pip
         pip install -r requirements.txt
         pip install pycodestyle coverage
         ln -s configuration.testing.py netbox/netbox/configuration.py
+        yarn --cwd netbox/project-static
 
     - name: Build documentation
       run: mkdocs build
@@ -49,6 +56,9 @@ jobs:
     - name: Check PEP8 compliance
       run: pycodestyle --ignore=W504,E501 netbox/
 
+    - name: Check UI ESLint, TypeScript, and Prettier Compliance
+      run: yarn --cwd netbox/project-static validate
+
     - name: Run tests
       run: coverage run --source="netbox/" netbox/manage.py test netbox/