Adding workspace creation date in list and popover

What does this MR do and why?

Displays the creation date of the workspaces created so developers can discern which was the first to last workspace created.

Screenshots or screen recordings

Screenshots are required for UI changes, and strongly recommended for all other merge requests.

Before	After

How to set up and validate locally

Numbered steps to set up and validate the change are strongly suggested.

I recommend using GitLab's Storybook With API Access decorator to test these changes locally. The goal is using gitlab.com as a backend instead of setting up remote development in your local environment.

Create a workspace in gitlab.com

1. You can create a Workspace in gitlab.com for the gitlab-web-ide project. Read the docs about creating a workspace: https://docs.gitlab.com/ee/user/workspace/#create-a-workspace

Set up Storybook

1. Connect your Storybook instance to gitlab.com using the following instructions: https://docs.gitlab.com/ee/development/fe_guide/storybook.html#set-up-api-access-token-and-gitlab-instance-url
2. Open http://localhost:9002/?path=/story/ee-remote-development-workspaces-list--default
3. Open http://localhost:9002/?path=/story/ee-remote-development-workspaces-dropdown-group--with-api-access&args=projectId:35104827

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.

Related to #408119 (closed) and https://gitlab.com/dsatcher/summer-internship/-/issues/1