Dynamic Dashboard: Reviews card styling

[hafizrahman]

Closes #12712

Description

This PR adds the visual styling for the Reviews card.

It's currently just using dummy data, so there's no functionality. The functionality will be added in the next PR, so please only check the SwiftUI code related to the visual aspect.

It adds styling for:

1. Status/filter area
2. filters data to be shown on the filters menu
3. Review area (bubbles, reviewer and review text, stars)
4. View all reviews button
5. Handling for when reviewer name is empty.

Testing instructions

Run app and compare it to the design:

Design	Simulator

[dangermattic]

	1 Warning
:warning:	This PR is assigned to the milestone 18.7. This milestone is due in less than 2 days. Please make sure to get it merged by then or assign it to a milestone with a later deadline.

Generated by :no_entry_sign: Danger

[wpmobilebot]

📲 You can test the changes from this Pull Request in WooCommerce iOS by scanning the QR code below to install the corresponding build.

	App Name	WooCommerce iOS
	Build Number	pr12731-73df51b
	Version	18.6
	Bundle ID	com.automattic.alpha.woocommerce
	Commit	73df51b708c06b59e6cd1aa6d3c7a9865d1cf180
	App Center Build	WooCommerce - Prototype Builds #9069

Automatticians: You can use our internal self-serve MC tool to give yourself access to App Center if needed.