Text in place of Disqus

[SpookyYomo]

Is your feature request related to a problem? Please describe.

With reference to https://github.com/nusmodifications/nusmods/issues/3766#issuecomment-2295340941, Disqus comments do not show up for various reasons, such as Privacy Protectors, particularly so on the likes of privacy-focused browsers, such as Brave (not tested), Hardened Firefox (see: ArkenFox) etc.

Describe the solution you'd like

Just as there are websites that still have a box around the expected location of an advertisement begging for you to disable your ad-block, we could have a placeholder suggested box that suggests Disqus has failed to load due to the user's browser. If the user-agent string is Firefox, as in the referenced comment, suggest to disable Enhanced Tracking Protection and reload the page. (Firefox extensions, with the likes of DecentralEyes, CanvasBlocker, and PrivacyBadger should be left to the user to decipher as to what is interfering with Disqus.)

Describe alternatives you've considered

We hope the user doesn't realise Disqus is a thing.