Chore: Updated the GitHub Actions for `main` branch #1

	name: Builds and pushes the results to the `build` branch when a pull request is merged into `main`

	on:
	pull_request:
	types: [closed]
	branches:
	- main

	jobs:
	deploy-to-branch:
	if: github.event.pull_request.merged == true
	runs-on: ubuntu-latest

	steps:
	- name: Checkout `main`
	uses: actions/checkout@v4

	- name: Set up Node.js, install dependencies and build
	uses: actions/setup-node@v4
	with:
	node-version: '22.x'
	- run: npm ci
	- run: npm run build

	- name: Preserve build output when moving branches
	# If this is not done then the build folder will be lost when we switch branches
	run: mv dist/csss-ng-frontend/browser ../build-tmp

	- name: Switch to the build branch and clean it
	run: \|
	# Get the latest on the branch that builds are held in and switch to it
	git fetch origin build
	git switch build
	# Remove everything in order to copy everything over
	rm -rf *

	- name: Copy the built files over to the root directory and push to `build`
	run: \|
	cp -R ../build-tmp/* .

	- name: Commit and push
	run: \|
	# Set up a dummy user and email for identification purposes
	git config --global user.name "${{ github.actor }}"
	git config --global user.email "${{ github.actor }}@user.noreply.github.com"
	git add .
	git commit -m "${{ github.event.pull_request.title }}"
	git push origin build
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

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