AITCORE-4: Update price format in component

* Fix issue: Deprecated Functionality: NumberFormatter::setAttribute(): Passing null to parameter #2 ($value) of type int|float is deprecated in /var/www/html/vendor/magento/module-directory/Model/Currency.php on line 497
* Rearrange imports
* Add `@throws` to method annotation
* Fix is safe because the method's default `$precision` [appeared in Magento 2.0.0](https://github.com/magento/magento2/blame/0f9a056c8d83c4f319626b3e56ec52a533999f25/lib/internal/Magento/Framework/Pricing/PriceCurrencyInterface.php#L53)

Components/Ui/Component/Listing/Column/Price.php

@@ -2,11 +2,11 @@
 
 namespace Aitoc\Core\Components\Ui\Component\Listing\Column;
 
+use Magento\Framework\Pricing\PriceCurrencyInterface;
 use Magento\Framework\View\Element\UiComponent\ContextInterface;
 use Magento\Framework\View\Element\UiComponentFactory;
-use Magento\Ui\Component\Listing\Columns\Column;
-use Magento\Framework\Pricing\PriceCurrencyInterface;
 use Magento\Store\Model\StoreManagerInterface;
+use Magento\Ui\Component\Listing\Columns\Column;
 
 class Price extends Column
 {
@@ -37,7 +37,9 @@ public function __construct(
      * Prepare Data Source
      *
      * @param array $dataSource
+     *
      * @return array
+     * @throws \Magento\Framework\Exception\NoSuchEntityException
      */
     public function prepareDataSource(array $dataSource)
     {
@@ -48,7 +50,7 @@ public function prepareDataSource(array $dataSource)
                     $item[$this->getData('name')] = $this->priceFormatter->format(
                         $item[$this->getData('name')],
                         false,
-                        null,
+                        \Magento\Framework\Pricing\PriceCurrencyInterface::DEFAULT_PRECISION,
                         null,
                         $currencyCode
                     );