Fix theme save #428

	# This is a basic workflow to help you get started with Actions

	name: Test Frontend

	# Controls when the action will run.
	on:
	# Triggers the workflow on push or pull request events but only for the main branch
	pull_request:
	branches: [main]

	# Allows you to run this workflow manually from the Actions tab
	workflow_dispatch:

	# A workflow run is made up of one or more jobs that can run sequentially or in parallel
	jobs:
	# This workflow contains a single job called "build"
	build:
	name: Build docker image
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	name: Checkout source code
	- name: Build the Docker image for the frontend
	run: \|
	docker build --build-arg TEST_VAR=production ./frontend --tag synbiohub/sbh3frontend:snapshot

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