Add .item-grid flex layout styles

Introduced a new .item-grid class with flex display, wrapping, and gap for improved grid layout styling.

Author: JorchCortez

src/App.css

@@ -480,6 +480,12 @@ section.sv-container{
   display:block
 }
 
+.item-grid {
+    display: flex;
+    flex-wrap: wrap;
+    gap: 0.75rem;
+}
+
 /*Small Screens*/
 @media only screen and (max-width: 800px){