subscription improve (#6339)

## Summary

Run keyboard shortcut bypasses paywall
Top Up button visible before paywall (confusing - hide until subscribed)
Question mark icon next to commercial models has no tooltip (hide until
added)

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-6339-subscription-improve-29a6d73d3650818e92c7f60eda01646a)
by [Unito](https://www.unito.io)

---------

Co-authored-by: bymyself <cbyrne@comfy.org>

tests-ui/tests/composables/useCoreCommands.test.ts

@@ -85,6 +85,13 @@ vi.mock('@/composables/auth/useFirebaseAuthActions', () => ({
   useFirebaseAuthActions: vi.fn(() => ({}))
 }))
 
+vi.mock('@/platform/cloud/subscription/composables/useSubscription', () => ({
+  useSubscription: vi.fn(() => ({
+    isActiveSubscription: vi.fn().mockReturnValue(true),
+    showSubscriptionDialog: vi.fn()
+  }))
+}))
+
 describe('useCoreCommands', () => {
   const mockSubgraph = {
     nodes: [