Method add

lib/modCheckLib.js:1590–1600

* Add a badge * @param {string} key badge id to add

(key)

	 * @param {string} key badge id to add
	 */
	add(key) {
		this.#baseSet.add(key)
		this.#extraData[key] ??= { cls : new Set(), title : new Set() }
		if ( key === 'pconly' ) { this.addClass(key, [
			'bdg_no_fs13',
			'bdg_no_fs15',
			'bdg_no_fs17',
			'bdg_no_fs19'
		]) }
		if ( key === 'nonmh' ) { this.addClass(key, 'bdg_no_fs13') }
	}

	/**
	 * Remove a badge