Better variable name. For the way this is being used in the app, a good one would be showTranslationWarning

That way, if showTranslationWarning is false...the translation warning is not shown. Makes sense.

This kind of console.log statement is important for testing, but needs to be removed for production. Only potentially useful console.log statements should go to prod.

Be more descriptive with your variable names.

For example, this could be something like detectedBrowserLang

Don't need this console.log for prod

Same same, remove this return console.log

Use this text for the alert description:

Please do not translate your seed phrase. Store your seed phrase in English. You must re-enter these exact English words to restore your wallet from seed.

Is this the actual browser code for Indonesian?

Let's go with this approach:

• Look for navigator.language , the string, instead of navigator.languages, the array
• Show the alert if navigator.language does not contain the substring en- ; that way stuff like en-US or en-GB is okay, but any variant that doesn't include en- would get the alert