feat(css): enhance large icons with primary color fill

Introduced a new style rule for large icons to utilize the primary color as their fill, improving visual consistency across the UI. This change ensures that larger icons blend seamlessly with the overall color scheme of the interface, enhancing user experience and maintaining brand identity.

assets/css/base.css

@@ -123,6 +123,10 @@ h5 {
   fill: var(--bs-primary-bg-subtle);
 }
 
+.bs-icon.bs-icon-lg svg {
+  fill: var(--bs-primary)
+}
+
 /* Responsive Styles */
 @media (max-width: 768px) {
   .navbar .container {