settings: Don't return maps with ParsedSettings()

Map-typed values in the parsedSettings map do not represent settings for
individual options, they represent maps of settings for multiple options for
the given glob or ft: pattern, and their keys are not option names, they are
glob and ft: patterns. So do not expose them to the callers of ParsedSettings(),
to prevent the callers from mistakenly treating those patterns as option names,
with unpredicted consequences.

Co-authored-by: Dmytro Maluka <dmitrymaluka@gmail.com>

internal/config/settings.go

@@ -256,6 +256,9 @@ func ReadSettings() error {
 func ParsedSettings() map[string]any {
 	s := make(map[string]any)
 	for k, v := range parsedSettings {
+		if strings.HasPrefix(reflect.TypeOf(v).String(), "map") {
+			continue
+		}
 		s[k] = v
 	}
 	return s