[backport core/1.41] fix: remove timeouts from error toasts so they persist until dismissed (#9543) (#9562)

Backport of #9543 to core/1.41.

Cherry-pick of merge commit 725a0a2b applied cleanly.

**Original PR:** https://github.com/Comfy-Org/ComfyUI_frontend/pull/9543
**Pipeline ticket:** 15e1f241-efaa-4fe5-88ca-4ccc7bfb3345

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-9562-backport-core-1-41-fix-remove-timeouts-from-error-toasts-so-they-persist-until-dismiss-31d6d73d365081caa825ff32ca622b2c)
by [Unito](https://www.unito.io)

src/components/helpcenter/HelpCenterMenuContent.vue

@@ -579,8 +579,7 @@ const onUpdateComfyUI = async (): Promise<void> => {
       toast.add({
         severity: 'error',
         summary: t('g.error'),
-        detail: error.value || t('helpCenter.updateComfyUIFailed'),
-        life: 5000
+        detail: error.value || t('helpCenter.updateComfyUIFailed')
       })
       return
     }
@@ -597,8 +596,7 @@ const onUpdateComfyUI = async (): Promise<void> => {
     toast.add({
       severity: 'error',
       summary: t('g.error'),
-      detail: err instanceof Error ? err.message : t('g.unknownError'),
-      life: 5000
+      detail: err instanceof Error ? err.message : t('g.unknownError')
     })
   }
 }