adjust font family base

Author: LordSimal

.vitepress/theme/custom.css

@@ -16,7 +16,7 @@
     --cake-color-link: #2D7EA4;
     --cake-color-progress: #d33c43;
 
-    --vp-font-family-base: 'Raleway', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
+    --vp-font-family-base: 'IBM Plex Sans', Helvetica, Arial, sans-serif;
     --vp-font-family-body: 'IBM Plex Sans', Helvetica, Arial, sans-serif;
 
     /* CakePHP Brand Colors - Official Red */