feat(geo_common): improve boundary.rect error message

In the case where a min lat/lon is larger than a max lat/lon, the error
message was a bit confusing as it did not show the actual property name
or the values that are causing errors.

sanitizer/_geo_common.js

@@ -49,7 +49,7 @@ function sanitize_bbox_min_max(raw, key_prefix) {
     const min = parseFloat(raw[`${key_prefix}.min_${dimension}`]);
 
     if (max <= min) {
-      throw new Error(`min_${dimension} is larger than max_${dimension} in ${key_prefix}`);
+      throw new Error(`${key_prefix}.min_${dimension} (${min}) must be less than ${key_prefix}.max_${dimension} (${max})`);
     }
   });
 }