🐛 fix performance issue on start (with huge listings/pricelist)

[idinium96]

Doing this:

    return this.prices.findIndex(entry => entry.sku === (sku ? sku : SKU.fromObject(parsedSku)));

will make it to poorly perform the task -

But this:

    sku = sku ? sku : SKU.fromObject(parsedSku);
    const findIndex = this.prices.findIndex(entry => entry.sku === sku);
    return findIndex;

Surprising fast -

This "without delay" thing is just the debugging thing I added here:

tf2autobot/src/classes/Listings.ts

Lines 399 to 425 in b059c62

	recursiveCheckPricelist(pricelist: Entry[], withDelay = false, time?: number, showLogs = false): Promise<void> {
	return new Promise(resolve => {
	let index = 0;
	const iteration = async (): Promise<void> => {
	if (pricelist.length <= index || this.cancelCheckingListings) {
	this.cancelCheckingListings = false;
	return resolve();
	}
	if (withDelay) {
	this.checkBySKU(pricelist[index].sku, pricelist[index], false, showLogs);
	index++;
	await sleepasync().Promise.sleep(time ? time : 200);
	void iteration();
	} else {
	setImmediate(() => {
	this.checkBySKU(pricelist[index].sku, pricelist[index]);
	index++;
	void iteration();
	});
	}
	};
	void iteration();
	});
	}