refactor(design): migrate --color-mergify-blue consumers to semantic tokens#11330

jd wants to merge 1 commit intodevs/jd/worktree-design/tokenize-home-discovery-callout-placeholder-b--ea29c0cdMergifyio/docs:devs/jd/worktree-design/tokenize-home-discovery-callout-placeholder-b--ea29c0cdfrom

devs/jd/worktree-design/migrate-color-mergify-blue-consumers-semantic--0f2ff78aMergifyio/docs:devs/jd/worktree-design/migrate-color-mergify-blue-consumers-semantic--0f2ff78aCopy head branch name to clipboard