all: Fix various user-facing and non-user-facing typos (#8509)

Found via `codespell -q 3 -S lang,./gui/default/vendor -L benchs,bu,inflight,ro`

lib/discover/global.go

@@ -137,7 +137,7 @@ func NewGlobal(server string, cert tls.Certificate, addrList AddressLister, evLo
 		evLogger:       evLogger,
 	}
 	if !opts.noAnnounce {
-		// If we are supposed to annonce, it's an error until we've done so.
+		// If we are supposed to announce, it's an error until we've done so.
 		cl.setError(errors.New("not announced"))
 	}