* Move HexComparere to Hex::Comparer service * Create USER_COLORS constant and constant specs * Move formats to constants * Rename Hex::Comparer to Color::CompareHex
* Refactor jbuilder for articles * Refactor remaining jbuilder files * Fix specs * Remove content_truncated from response template JSON Co-authored-by: Ben Halpern <bendhalpern@gmail.com>