Enable New Environment Details Page

What does this MR do and why?

This page is now written in vue for better responsiveness and to ease the addition of upcoming features. No functionality should be removed by this.

Changelog: changed

Screenshots or screen recordings

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

How to set up and validate locally

1. create a project and add the following .gitlab-ci.yaml file

stages:
    - deploy
image: alpine:latest

deploy-prod:
    stage: deploy
    script:
        - sleep 10
        - echo "deploying prod"
    environment:
        name: production
        url: postgres://example.com

deploy-staging:
    stage: deploy
    script:
        - echo "deploying staging"
    environment:
        name: staging
        url: https://example.com

1. Run the pipeline to trigger a creation of pending deployment
2. Locate your deployment on Deployments -> Environments -> Production
3. Check out the new page

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.

For #384914 (closed)