Resolve some bugs and refactor localizations.

Resolve #167: Correct capitalization on cards
Resolve #169: Fix cast code failing to compile by moving to ES6 for the closure compiler target.
Move to noun and plural set-up which should make localization easier.

.github/workflows/publish_docker_images.yml

@@ -25,6 +25,9 @@ jobs:
         uses: actions/checkout@v2
       - name: Get version from tag.
         uses: olegtarasov/get-tag@v1
+      - name: Cache docker layers.
+        uses: satackey/action-docker-layer-caching@v0.0.8
+        continue-on-error: true
       - name: Build image.
         run:
           cd "${COMPONENT}" &&