Fix check if char is not letter or number #149

	# From: https://github.com/nullromo/doxygen-example/blob/main/.github/workflows/main.yml
	name: Doxygen Action

	on:
	push:
	branches: [main]

	permissions:
	contents: write

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3

	- name: Build Doxygen documentation for Backend
	uses: mattnotmitt/[email protected]
	with:
	doxyfile-path: "./Doxyfile"
	working-directory: "./backend"

	- name: Build Doxygen documentation for Raspberry Pi
	uses: mattnotmitt/[email protected]
	with:
	doxyfile-path: "./Doxyfile"
	working-directory: "./raspberry_pi"

	- name: Move Doxygen HTML files into their parent directories
	run: \|
	sudo mv docs/backend/html/* docs/backend
	sudo mv docs/raspberry_pi/html/* docs/raspberry_pi

	- name: Build JSDoc documentation
	uses: andstor/jsdoc-action@v1
	with:
	config_file: "./frontend/jsdoc.config.json"
	output_dir: './docs/frontend'
	recurse: true

	- name: Deploy
	uses: peaceiris/actions-gh-pages@v3
	with:
	github_token: ${{ secrets.GITHUB_TOKEN }}
	publish_dir: ./docs

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