Clean up state of E2E tests

This changeset takes care of leaving E2E tests in a clean state so that
we can revisit the work later.  The efforts to add authentication
support did not pan out, so we will go a different route in the near
future.

Signed-off-by: Carlo Costino <carlo.costino@gsa.gov>

.gitignore

@@ -123,3 +123,6 @@ app/templates/vendor
 secrets.auto.tfvars
 terraform.tfstate
 terraform.tfstate.backup
+
+# Playwright
+playwright/