Add new horizontal masonry and image height allocation

- Move image templates to content/image sub-folder

src/Content/Post/Collection/PostMedias.php

@@ -42,4 +42,16 @@ class PostMedias extends BaseCollection
 	{
 		return parent::current();
 	}
+
+	/**
+	 * Determine whether all the collection's item have at least one set of dimensions provided
+	 *
+	 * @return bool
+	 */
+	public function haveDimensions(): bool
+	{
+		return array_reduce($this->getArrayCopy(), function (bool $carry, Entity\PostMedia $item) {
+			return $carry && $item->hasDimensions();
+		}, true);
+	}
 }