Make it more obvious that sign-in is required for most features on the site

[Openstreetmapler]

Describe the bug

• When loading the site: two toasts with text “Authentication error. Sign in again and repeat the operation.”
  • These errors also show up in the browser console.
• On the Filters page, when I try filling the Users field, it refuses to work: no suggestions, and input is cleared when I click somewhere else!

Changeset URL

No response

Environment

Firefox 128.0.3 on macOS

Additional information

• Using Privacy Badger and uBlock Origin, I’m blocking the sentry.io and plausible.io domains to protect my data and habits from trackers. Does this cause issues?
• If you need to sign in with your OSM account to use most features, please make this fact more obvious to first-time visitors! My first impression of the site is confusion with some disappointment.

[Openstreetmapler]

Found this on the about page:

Can I view the changesets and use filters without logging into OSMCha?

No, OSMCha requires a sign in with your OpenStreetMap account in order so see changesets.

This information should be displayed to newcomers in e.g. a modal or a sticky toast, not a warning/error toast that auto-disappears after a few seconds.