Method isUpdated

src/lib/installState.js:76–90

* * @param {string} url * @param {ArrayBuffer | string} content * @param {boolean} isString * @returns

(url, content)

	 * @returns
	 */
	async isUpdated(url, content) {
		url = url.toLowerCase();
		const current = this.store[url];
		const update =
			typeof content === "string"
				? await checksumText(content)
				: await checksum(content);
		this.updatedStore[url] = update;

		if (current === update) {
			return false;
		} else {
			return true;
		}
	}

	/**
	 *