Add Javascript github action build/validation (#3)

.github/workflows/go.yaml

@@ -7,8 +7,28 @@ on:
     branches: [ "main" ]
 
 jobs:
+  js:
+    name: Build & Test JavaScript
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - name: Set Node.js 18.x
+      uses: actions/setup-node@v3
+      with:
+        node-version: 18.x
+        cache: yarn
+        cache-dependency-path: js/yarn.lock
+    - run: yarn install --frozen-lockfile
+      working-directory: ./js
+    - name: Test JavaScript
+      run: yarn test
+      working-directory: ./js
+    - name: Webpack Build
+      run: yarn build
+      working-directory: ./js
 
-  build:
+  go:
+    name: Build & Test Go. Create CLI Artifacts.
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v3