fix: Wrong bitness information

[canerakdas]

Description

If we cannot get the user's bitness information from the userAgent if getHighEntropyValues is not supported, the default is x86.

We act as if we are using the architecture, but since the x86 version is not officially distributed for Linux and Mac, users are directed to the wrong links.

This PR aims to create an alternative source to getHighEntropyValues by adding more to the conditions we check in userAgent.

Also, should we do something in the UI for versions that do not have an x86 version? (Maybe disabling the button?) cc @nodejs/nodejs-website

Validation

It would be better to test it on as many operating systems as possible in preview 👀

Related Issues

Fixes #6360

Check List

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• [x] I've covered new added functionality with unit tests if necessary.