Add initial status page

Review app: https://add-status-information-page.design.gitlab.com/getting-started/status

Description

Adds a new "Status" page within the "Getting started" section.
This page provides a status overview of all relevant Design System content pages. Not all of them might need a status:

• Styles
• Layout
• Components
• Regions
• Content
• Usability

Right now, status is indicated via four states, including icon and description:

Emoji	Status	Description
🚫	Upcoming	Upcoming shortly
⚠	Work in progress	Not finished yet
✅ 🆕	New	Newly available, implement with caution (We might want to remove this for the time being, interesting if we have Design System releases synced to product releases)
✅	Implemented	Ready to implement

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WIP as I want to generate the table sections instead of having to manually add/update each page individually.

• Based on existing .vue files
• Additional YML header to add status per file

In addition, replace emojis via color-coded spans.

References

Closes https://gitlab.com/gitlab-org/design.gitlab.com/issues/95