Create User-Level Extension Marketplace settings

MR: Add Extensions Marketplace in Web IDE (!151352 - merged)

Description

Based on Create Instance-Level and Root-Group-Level Exte... (#451871). From this note:

Allow Extension Marketplace: which is a flag for whether the Web IDE and Remote Development Workspace should initialize the Extension Marketplace for the current user. If the instance setting Require user opt-in is true, then we'll show a warning to the user with the legal disclaimer when the user enables this flag:

Implementation notes

• We should have something in lib/gitlab/web_ide that encapsulates the logic for extension_marketplace_instance_enabled?. If this is false, we don't need to show the setting in user profile. If this is true, we'll show it.

• We should add something like extension_marketplace_for_user(user) which returns the user specific extension marketplace setting that'll be used by the IDE.

  • If it is not instance enabled, this should be { enabled: false, reason: 'instance' }
  • If it is instance enabled but not user enabled, this should be { enabled: false, reason: 'user', profileUrl: '...' }
  • If if is enabled all around, this should be { enabled: true, url: '...' }
  • We'll pass this to the Web IDE under a new extensionMarketplace param.

• Values for ExtensionGalleryDisabledReason enum:

  • "NO_USER"
  • "NO_OPT_IN"
  • "INSTANCE_DISABLED"

• Relevant Feature Flags:

  • (exists) allow_extensions_marketplace_in_workspace
  • allow_extensions_marketplace_in_client_only

• Proposal for RemoteDevelopment::Settings

  • get_all_settings({ user:, extension_marketplace_feature_flag_enabled })