Make benchmark-ready "Available workflows" list use available vertical space (#2058)

Fixes OPS-3845.

https://www.loom.com/share/ade634d9e8674c8fac918415273af4a0

Author: cezudas

packages/react-ui/src/app/features/benchmark/components/benchmark-wizard.tsx

@@ -163,7 +163,11 @@ export const BenchmarkWizard = ({
                   />
                 )}
               </WizardStep>
-              <WizardStep value="benchmark-ready" key="benchmark-ready">
+              <WizardStep
+                value="benchmark-ready"
+                key="benchmark-ready"
+                className="flex flex-col flex-1 min-h-0"
+              >
                 {benchmarkCreateResult && (
                   <BenchmarkReadyStep
                     providerName={providerName}

packages/ui-components/src/components/benchmark/benchmark-workflow-list.tsx

@@ -8,16 +8,16 @@ export const BenchmarkWorkflowList = ({
   workflows: BenchmarkWorkflowBase[];
   provider: string;
 }) => (
-  <div>
+  <div className="flex flex-col flex-1 min-h-0">
     <p className="font-medium text-sm mb-2">{t('Available workflows:')}</p>
-    <ul className="list-disc pl-5 space-y-1 overflow-y-auto max-h-[120px]">
+    <ul className="list-disc pl-5 space-y-1 overflow-y-auto min-h-0">
       {workflows.map((workflow) => (
         <li key={workflow.flowId} className="text-sm">
           {workflow.displayName}
         </li>
       ))}
     </ul>
-    <p className="text-xs text-muted-foreground mt-3 italic">
+    <p className="text-xs text-muted-foreground mt-3 italic shrink-0">
       {t(
         '* Running the benchmark triggers {provider} API calls, which may result in a small charge from {provider} (typically not exceeding $0.03 per account).',
         { provider },