style: update social media badges for consistency and improved visibility

Author: pH-7

README.md

@@ -133,9 +133,9 @@ Designed & coded with passion by **[Pierre-Henry Soria](https://ph7.me)** — a
 
 [![Pierre-Henry Soria](https://avatars0.githubusercontent.com/u/1325411?s=200)](https://pierrehenry.be "My personal website")
 
-[![X](https://img.shields.io/badge/X-000000?style=flat&logo=x&logoColor=white)](https://x.com/phenrysay "Pierre-Henry Soria on X")
-[![BlueSky](https://img.shields.io/badge/BlueSky-0285FF?style=flat&logo=bluesky&logoColor=white)](https://bsky.app/profile/pierrehenry.dev "Pierre-Henry Soria on BlueSky")
-[![GitHub](https://img.shields.io/badge/GitHub-181717?style=flat&logo=github&logoColor=white)](https://github.com/pH-7 "Pierre-Henry Soria on GitHub")
+[![@phenrysay](https://img.shields.io/badge/x-000000?style=for-the-badge&logo=x&logoColor=white)](https://x.com/phenrysay "Follow Me on X")
+[![BlueSky](https://img.shields.io/badge/BlueSky-000000?style=for-the-badge&logo=bluesky&logoColor=white)](https://bsky.app/profile/pierrehenry.dev "Follow Me on BlueSky")
+[![pH-7](https://img.shields.io/badge/GitHub-100000?style=for-the-badge&logo=github&logoColor=white)](https://github.com/pH-7 "Follow Me on GitHub")
 [![LinkedIn](https://img.shields.io/badge/LinkedIn-0077B5?style=for-the-badge&logo=linkedin&logoColor=white)](https://www.linkedin.com/in/ph7enry/ "Pierre-Henry Soria on LinkedIn")
 
 Open to exciting opportunities — **[let's chat](https://www.linkedin.com/in/ph7enry/)**.