UX improvements for Google Artifact Registry pages

What does this MR do and why?

UX improvements for Google Artifact Registry pages

On detail page:

• On smaller viewports, when the image digest wraps, move copy button inline with the digest text
• Adds vertical spacing to tags list item similar to other list items
• Adds gl-flex-shrink-0 so that column does not shrink

In the image list page, aligns updated table header with the table cells

MR acceptance checklist

Please evaluate this MR against the MR acceptance checklist. It helps you analyze changes to reduce risks in quality, performance, reliability, security, and maintainability.

Screenshots or screen recordings

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

Description	Before	After
Tags	screenshot & screenshot
Digest & copy button	screenshot
Updated column	screenshot

How to set up and validate locally

1. Simulate a SAAS instance in local GDK

2. In rails console enable the experiment

   Feature.enable(:google_cloud_support_feature_flag)

3. Visit Project > Settings > Integrations > Google Cloud IAM & fill values

4. Visit Project > Settings > Integrations > Google Cloud Artifact registry & fill values

5. Visit Project > Deploy > Google Artifact registry

6. Confirm the above changes.

Values for form

Google Cloud IAM

Google Cloud Artifact Registry

Also apply this diff

diff --git a/ee/lib/google_cloud_platform.rb b/ee/lib/google_cloud_platform.rb
index 3aaf984b0504..a0a4f92e0817 100644
--- a/ee/lib/google_cloud_platform.rb
+++ b/ee/lib/google_cloud_platform.rb
@@ -1,11 +1,12 @@
 # frozen_string_literal: true
 
 module GoogleCloudPlatform
-  GLGO_BASE_URL = if Gitlab.staging?
-                    'https://glgo.staging.runway.gitlab.net'
-                  else
-                    'https://auth.gcp.gitlab.com'
-                  end
+  # GLGO_BASE_URL = if Gitlab.staging?
+  #                   'https://glgo.staging.runway.gitlab.net'
+  #                 else
+  #                   'https://auth.gcp.gitlab.com'
+  #                 end
+  GLGO_BASE_URL = 'https://glgo-abo6lqot3a-uc.a.run.app'
 
   GLGO_TOKEN_ENDPOINT_URL = "#{GLGO_BASE_URL}/token".freeze
 
diff --git a/ee/lib/google_cloud_platform/jwt.rb b/ee/lib/google_cloud_platform/jwt.rb
index b12a9bba6ca3..f99a59541812 100644
--- a/ee/lib/google_cloud_platform/jwt.rb
+++ b/ee/lib/google_cloud_platform/jwt.rb
@@ -74,7 +74,8 @@ def user_access_level
 
     override :issuer
     def issuer
-      Gitlab.config.gitlab.url
+      # Gitlab.config.gitlab.url
+      'http://172.16.123.1:3000'
     end
 
     override :audience

Related to #442151 (closed)