add workflow to run e2e tests when pushing

.github/workflows/push.yml

@@ -0,0 +1,17 @@
+name: Cypress Tests
+
+on: [push]
+
+jobs:
+  cypress-run:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+ 
+      - name: Cypress run
+        uses: cypress-io/github-action@v2
+        with:
+          working-directory: frontend
+          command: npm run e2e:ci
+