feat: add "Request a Quote" section to product comparison page and enhance CSS styles

- Introduced a new section for "Request a Quote" in product-comparison.html, positioned after the warranty details for better visibility.
- Updated main.css with new utility classes for widths and padding to support the new layout and improve overall styling consistency.

styles/main.css

@@ -1083,6 +1083,14 @@ video {
   width: 95vw;
 }
 
+.w-24 {
+  width: 6rem;
+}
+
+.w-1\/3 {
+  width: 33.333333%;
+}
+
 .max-w-2xl {
   max-width: 42rem;
 }
@@ -1722,6 +1730,18 @@ video {
   padding-top: 1rem;
 }
 
+.pt-16 {
+  padding-top: 4rem;
+}
+
+.pb-2 {
+  padding-bottom: 0.5rem;
+}
+
+.pt-8 {
+  padding-top: 2rem;
+}
+
 .text-center {
   text-align: center;
 }
@@ -2317,6 +2337,10 @@ video {
     width: auto;
   }
 
+  .md\:w-64 {
+    width: 16rem;
+  }
+
   .md\:grid-cols-2 {
     grid-template-columns: repeat(2, minmax(0, 1fr));
   }