change: [M3-8491] - Image Service Gen2 GA tweaks

[bnussman-akamai]

Description 📝

Makes a number of minor tweaks for Image Service Gen2 GA

Changes 🔄

• Uses the term "Replicas" instead of "Regions" ✏️
• Only shows regions with the Object Storage capability in the "Manage Replicas" drawer 🌐
  • This is because the image service uses Object Storage behind the scenes to store Images
• Shows Image size / total size in GB if the image is >= 1GB 💾
• Renders the number of regions rather than the first region followed by ➕5️⃣
• Updates tests to account for changes listed 🧪
• Updated copy on Images landing, image upload, and image capture pages 📝

Preview 📷

Before	After

How to test 🧪

Prerequisites

• Use staging or production
• Have the image-gen2 customer tag
• Create a Gen 2 image by capturing from a Linode or uploading a new image

Verification steps

• Verify updated copy and UX makes sense 🧠
• Check for spelling errors ✏️
• Verify tests were updated adequately for the changes

As an Author I have considered 🤔

• [ ] 👀 Doing a self review
• [ ] ❔ Our contribution guidelines
• [ ] 🤏 Splitting feature into small PRs
• [x] ➕ Adding a changeset
• [ ] 🧪 Providing/Improving test coverage
• [ ] 🔐 Removing all sensitive information from the code and PR description
• [ ] 🚩 Using a feature flag to protect the release
• [ ] 👣 Providing comprehensive reproduction steps
• [ ] 📑 Providing or updating our documentation
• [ ] 🕛 Scheduling a pair reviewing session
• [ ] 📱 Providing mobile support
• [ ] ♿ Providing accessibility support

[github-actions[bot]]

Coverage Report: ✅
Base Coverage: 86.4%
Current Coverage: 86.4%