Increase chatbot tooltip dismissal duration to 3 days (#330)

The tooltip reappeared 2 hours after a user dismissed it, which was
often enough to read as nagging. Extend the window to 3 days.

Bumps tooltipDismissDuration, the single constant both the display
check and the localStorage expiry check compare against, so the
cldocs_chatbot_tooltip_dismissed_time timestamp is re-evaluated
against the longer window with no migration needed.

Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>

Author: yel-hadd

docs/.vuepress/components/Chat.vue

@@ -87,7 +87,7 @@ export default {
       iframeUrl: "https://chatbot.cloudlinux.com/docs/cloudlinux",
       windowWidth: 0, // Changed from window.innerWidth to avoid SSR error
       tooltipDismissedTime: null,
-      tooltipDismissDuration: 2 * 60 * 60 * 1000, // 2 hours in milliseconds
+      tooltipDismissDuration: 3 * 24 * 60 * 60 * 1000, // 3 days in milliseconds
     };
   },
   computed: {