re-add working directory key

.circleci/config.yml

@@ -286,6 +286,7 @@ workflows:
                 add wait-on' # Use yarn latest
           yarn: true
           store_artifacts: true
+          working_directory: platform/viewer
           build: yarn run build
           start: yarn run test:e2e:dist
           wait-on: 'http://localhost:3000'
@@ -303,6 +304,7 @@ workflows:
                 add wait-on' # Use yarn latest
           yarn: true
           store_artifacts: true
+          working_directory: platform/viewer
           build: yarn run build:package
           start: yarn run test:e2e:dist
           wait-on: 'http://localhost:3000'