fix(ui): apply Slack integration design feedback (#12677)

ui/components/integrations/slack/slack-inline-code.tsx

@@ -0,0 +1,15 @@
+import type { ReactNode } from "react";
+
+interface SlackInlineCodeProps {
+  children: ReactNode;
+}
+
+/**
+ * A Slack identifier — a channel name, the bot mention, a slash command — set
+ * apart from the prose around it.
+ */
+export const SlackInlineCode = ({ children }: SlackInlineCodeProps) => (
+  <code className="bg-bg-neutral-tertiary text-text-neutral-secondary rounded px-1 py-0.5 font-mono">
+    {children}
+  </code>
+);