Wait in demo after setting caption

This looks nicer than waiting a second and then showing the caption as the action begins

pkg/integration/tests/demo/interactive_rebase.go

@@ -28,6 +28,7 @@ var InteractiveRebase = NewIntegrationTest(NewIntegrationTestArgs{
 	},
 	Run: func(t *TestDriver, keys config.KeybindingConfig) {
 		t.SetCaptionPrefix("Interactive rebase")
+		t.Wait(1000)
 
 		t.Views().Commits().
 			IsFocused().