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Add selection checkboxes and other selection stuff #6

	name: 📊 Static Checks
	on: [push, pull_request]

	concurrency:
	group: ci-${{ github.actor }}-${{ github.head_ref \|\| github.run_number }}-${{ github.ref }}-static

	jobs:
	static-checks:
	name: Code style, file formatting, and XML validation
	runs-on: ubuntu-24.04
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	with:
	fetch-depth: 2

	- name: Setup Node.js
	uses: actions/setup-node@v4
	with:
	node-version: 22

	- name: Install dependencies
	run: npm ci

	- name: Run ESLint
	run: npx eslint --max-warnings=0

	- name: Install APT dependencies for XML validation
	uses: awalsh128/cache-apt-pkgs-action@latest
	with:
	packages: libxml2-utils

	- name: XML validation via xmllint
	run: \|
	xmllint --nout data/io.github.flattool.Brim.gschema.xml data/io.github.flattool.Brim.metainfo.xml.in src/io.github.flattool.Brim.data.gresource.xml src/io.github.flattool.Brim.src.gresource.xml