Release-v3.0.0

What's Changed

• Update some configurations by @krypton225 in #80
• feat: 🧑‍💻 add build dir & nodemon to generate some files by @krypton225 in #81
• chore(config-file): 🔧 add nodemon.json & build directory by @krypton225 in #82
• fix(mixins-media-queries): 🐛 fix map_get to be map.get function by @krypton225 in #83
• Add print media for printing a page by @krypton225 in #84
• docs(docs): 📝 add CODE-OF-CONDUCT.md & update version of library by @krypton225 in #85
• Add reset-zone package by @krypton225 in #86

Full Changelog: Release-v2.1.1...Release-v3.0.0