Optimize the alert information on the page after opening the node.

[FrederLu]

Describe the bug
A clear and concise description of what the bug is.

To Reproduce
Steps to reproduce the behavior:
1、After turning on Node mode, visit the home/transaction/block/address page；
2、Enter cmd + shift + P in the browser console, enter Show Network request blocking, and enter the window for blocking the network;
3、Click Add Pattern, enter https://mainnet-api.explorer.nervos.org/ to intercept the server interface；
4、Open or refresh the Home/Block/Transaction/Address page to see the warning message；

Expected behavior
Shield the background service interface. After turning on the node mode, you can hide the alert prompt information on the home page/block/transaction/address page.

Screenshots
https://ckb-explorer-frontend-in-magickbase-repo-1iszib3m1-magickbase.vercel.app/

https://ckb-explorer-frontend-in-magickbase-repo-1iszib3m1-magickbase.vercel.app/block/14443936

https://ckb-explorer-frontend-in-magickbase-repo-1iszib3m1-magickbase.vercel.app/address/ckt1qqexmutxu0c2jq9q4msy8cc6fh4q7q02xvr7dc347zw3ks3qka0m6qg9qgygrcl4k7pjuafdzmlzwy8ws4dxja7uq5pq3q0r7kmcxtn495t0ufcsa6z456thmsgdxklk

After disabling the server interface and opening Node:
The data can be seen on the homepage/block/address, but there will be network anomalies when opening or refreshing the page.

[poor-defined]

Marked as a low priority, you can fix this bug when you are free @PainterPuppets