upcoming: [M3-8751] - Image Service Gen 2 final GA tweaks

[bnussman-akamai]

Description 📝

• Makes final Image Service Gen2 tweaks for GA 💾
• Adds imageServiceGen2Ga feature flag 🏴
  • Probably should have used an object feature flag in the first place, sorry about that!

Primary Changes for GA 🔁

• When GA is enabled
  • On the Images Landing page, there should be no compatibility column
  • On the Images Landing page, there should be a cloud-init icon on the Images Landing page for images that support cloud-init
  • On the Image Capture page, there should be a warning notice that shows when the user selects a Linode in a region where there is not image storage

Target release date 🗓️

10/28

Preview 📷

	Default (Image Service Gen2 completely disabled)	Image Service Gen2 LA (imageServiceGen2 enabled)	Image Service Gen2 GA (imageServiceGen2 and imageServiceGen2Ga enabled) (this PR adds this)
Landing page
Capture Image page

How to test 🧪

How to test warning notice on Image Capture page

• Go to the image Capture page (http://localhost:3000/images/create)
• Enable the Image Service Gen2 GA flag
• Select a Linode that exists in a region that does not have Object Storage
• Observe new notice
• Check that notice for spelling, correct links, and style

How to test Images landing page

• Go to the Images landing page
• Test this page with various images and various feature flag configurations
  • Refer to the "Primary Changes for GA" section for an overview of what you should see

As an Author I have considered 🤔

• [ ] 👀 Doing a self review
• [ ] ❔ Our contribution guidelines
• [ ] 🤏 Splitting feature into small PRs
• [x] ➕ Adding a changeset
• [x] 🧪 Providing/Improving test coverage
• [ ] 🔐 Removing all sensitive information from the code and PR description
• [x] 🚩 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