fix: adding Gentium

Author: PouyaMohseni

web-app/frontend/assets/scss/global.scss

@@ -3,7 +3,7 @@
 @use "bootstrap-overrides" as *;
 
 // Import self-hosted Gentium font for POJ/Taiwanese extended Latin support
-@import "gentium";
+@import url('https://fonts.googleapis.com/css2?family=Gentium+Plus:wght@400;700&display=swap');
 
 // Custom variables (override Bootstrap's default variables)
 // Import Noto Sans fonts for comprehensive multilingual support