Fixed more duplicated strings in descriptions

Author: claudiosanches

assets/js/blocks/featured-category/block.js

@@ -214,7 +214,7 @@ class FeaturedCategory extends Component {
 				className="wc-block-featured-category"
 			>
 				{ __(
-					'Visually highlight a product category and encourage prompt action',
+					'Visually highlight a product category and encourage prompt action.',
 					'woo-gutenberg-products-block'
 				) }
 				<div className="wc-block-featured-category__selection">

assets/js/blocks/product-category/block.js

@@ -178,7 +178,7 @@ class ProductByCategoryBlock extends Component {
 				className="wc-block-products-grid wc-block-products-category"
 			>
 				{ __(
-					'Display a grid of products from your selected categories',
+					'Display a grid of products from your selected categories.',
 					'woo-gutenberg-products-block'
 				) }
 				<div className="wc-block-products-category__selection">

assets/js/blocks/product-tag/block.js

@@ -174,7 +174,7 @@ class ProductsByTagBlock extends Component {
 				className="wc-block-products-grid wc-block-product-tag"
 			>
 				{ __(
-					'Display a grid of products from your selected tags',
+					'Display a grid of products from your selected tags.',
 					'woo-gutenberg-products-block'
 				) }
 				<div className="wc-block-product-tag__selection">