Alba Rincón

Register patterns under `patterns` folder and add filters pattern

6

This PR introduces the new `Patterns` class that is used to register patterns and pattern categories. The patterns are loaded from the `/patterns` folder. It also introduces a new pattern...

The goal is to update the `Active filters` block with the new [proposed design](https://woofse.wordpress.com/2022/06/17/filter-blocks-adjustments-i1/): ([Figma](6ZhHLQ7ucHUYgWHr3nusNB-fi-374%3A9817))

Create a pattern that contains all the filter blocks: - Active filters - Filter Products by Attribute - Filter Products by Stock - Filter Products by Price

The goal is to replace the banner with a line of text following the [new design](https://www.figma.com/file/6ZhHLQ7ucHUYgWHr3nusNB/%F0%9F%94%8E-Filter-Blocks-%26-Patterns?node-id=217%3A6078).

The goal is to update the Filter by Price block with the new [proposed design](https://woofse.wordpress.com/2022/06/17/filter-blocks-adjustments-i1/#stock): ([Figma](https://www.figma.com/file/6ZhHLQ7ucHUYgWHr3nusNB/%F0%9F%94%8E-Filter-Blocks-%26-Patterns?node-id=374%3A7449)) 

The goal is to update the `Filter by Price` block with the new [proposed design](https://woofse.wordpress.com/2022/06/17/filter-blocks-adjustments-i1/#price): ([Figma](https://www.figma.com/file/6ZhHLQ7ucHUYgWHr3nusNB/%F0%9F%94%8E-Filter-Blocks-%26-Patterns?node-id=421%3A7915)) 

The goal is to update the `Filter by Attributes` block with the new [proposed design](https://woofse.wordpress.com/2022/06/17/filter-blocks-adjustments-i1/#attribute): ([Figma](https://www.figma.com/file/6ZhHLQ7ucHUYgWHr3nusNB/%F0%9F%94%8E-Filter-Blocks-%26-Patterns?node-id=374%3A7448)) 

The goal of this task is to investigate how the `Filter Products by Attribute` will work when included in a pattern. The complication with this block is that it needs...

The goal of this task is to improve the skeleton loading states of filters according to the [new designs](https://woofse.wordpress.com/2022/06/17/filter-blocks-adjustments-i1/#load): [Figma link](https://www.figma.com/file/6ZhHLQ7ucHUYgWHr3nusNB/%F0%9F%94%8E-Filter-Blocks-%26-Patterns?node-id=219%3A3365)

Investigate if it's possible to separate the filter blocks header from the rest of the block (which may be a breaking change). For more context see the `Header` section of...