feat: add js templates

templates/js-build.yml

+js-build:
+  stage: build
+  image: node:14-alpine
+  needs:
+    - js-install
+  script:
+    - '[ -e yarn.lock ] && yarn build || npm run build'

templates/js-install.yml

+js-install:
+  stage: install
+  image: node:14-alpine
+  script:
+    - '[ -e yarn.lock ] && yarn || npm i'
+  artifacts:
+    expire_in: 1 day
+    paths:
+      - node_modules

templates/lint/eslint.yml → templates/lint/js-lint.yml

-eslint:
+js-lint:
   stage: lint
   image: node:14-alpine
@@ -2,6 +2,6 @@
   stage: lint
   image: node:14-alpine
-  before_script:
-    - '[ -e yarn.lock ] && yarn || npm i'
+  needs:
+    - js-install
   script:
     - '[ -e yarn.lock ] && yarn lint || npm run lint'

templates/tests/js-test.yml

+js-test:
+  stage: test
+  image: node:14-alpine
+  needs:
+    - js-install
+  script:
+    - '[ -e yarn.lock ] && yarn test || npm run test'