[ci] Added CI

.gitlab-ci.yml

+image: lorisleiva/laravel-docker:latest
+
+npm:
+  stage: build
+  cache:
+    key: ${CI_COMMIT_REF_SLUG}-npm
+    paths:
+      - node_modules/
+  script:
+    - yarn install
+    - yarn build
+  artifacts:
+    expire_in: 1 month
+    paths:
+      - build/