feat: Add hide-when-zero and fix unavailable display on value slots #268

	---
	name: Validate Blueprint YAML

	# yamllint disable-line rule:truthy
	on:
	pull_request:
	paths:
	- "nspanel_easy_blueprint.yaml"
	workflow_dispatch:

	permissions:
	contents: read

	jobs:
	code_scan:
	name: Validate Blueprint YAML
	runs-on: "ubuntu-latest"
	steps:
	- uses: actions/checkout@v6
	with:
	fetch-depth: '0'

	- name: Set up Python
	uses: actions/setup-python@v6.2.0
	with:
	python-version: "3.11"

	- name: Install dependencies
	run: pip install -r .github/requirements.txt

	- name: Validate nspanel_easy_blueprint.yaml
	run: yamllint -c "./.rules/yamllint.yml" nspanel_easy_blueprint.yaml
	...

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