feat(views): show issue title in detail page header

Previously the issue detail top bar only showed 'workspace name > identifier'.
Add the issue title next to the identifier so users can see what issue they're
viewing without scrolling.

packages/views/issues/components/issue-detail.tsx

@@ -697,9 +697,12 @@ export function IssueDetail({ issueId, onDelete, defaultSidebarOpen = true, layo
                 <ChevronRight className="h-3 w-3 text-muted-foreground/50 shrink-0" />
               </>
             )}
-            <span className="shrink-0">
+            <span className="shrink-0 text-muted-foreground">
               {issue.identifier}
             </span>
+            <span className="truncate font-medium text-foreground">
+              {issue.title}
+            </span>
           </div>
           <div className="flex items-center gap-1 shrink-0">
             <Tooltip>