feat(frontend): collapse responding services on the diagnostics page

Failing console services stay visible; responding ones are behind a toggle.

packages/frontend/src/pages/DiagnosticsPage.tsx

@@ -88,17 +88,25 @@ function DiagnosticsReport({report}: {report: RuntimeDiagnostics}) {
 }
 
 function ConsoleServicesTable({services}: {services: CloudServiceStatus[]}) {
+    const [showResponding, setShowResponding] = useState(false)
     const failing = services.filter((service) => service.runtime !== 'reachable')
-    const ordered = [...failing, ...services.filter((service) => service.runtime === 'reachable')]
+    const responding = services.filter((service) => service.runtime === 'reachable')
+    const ordered = showResponding ? [...failing, ...responding] : failing
     return (
         <section className="table-panel" aria-labelledby="diagnostics-console-services">
             <header className="diagnostics-section-header">
                 <h2 id="diagnostics-console-services">Console services</h2>
-                <span className="muted">{failing.length ? `${failing.length} of ${services.length} failing` : `${services.length} responding`}</span>
+                <div className="diagnostics-filters">
+                    <span className="muted">{failing.length ? `${failing.length} of ${services.length} failing` : `All ${services.length} responding`}</span>
+                    {responding.length > 0 && (
+                        <button className="button compact" type="button" aria-expanded={showResponding} onClick={() => setShowResponding((value) => !value)}>
+                            {showResponding ? 'Hide responding' : `Show ${responding.length} responding`}
+                        </button>
+                    )}
+                </div>
             </header>
-            {services.length === 0
-                ? <p className="muted padded">No console services are registered for this cloud.</p>
-                : <table className="table">
+            {services.length === 0 && <p className="muted padded">No console services are registered for this cloud.</p>}
+            {ordered.length > 0 && <table className="table">
                     <thead><tr><th>Service</th><th>Status</th><th>Latency</th><th>Detail</th></tr></thead>
                     <tbody>{ordered.map((service) => (
                         <tr key={service.service}>