Update footer link colors

Change footer anchor color classes to use deeper blue shades for base and hover states (from #63a7de/#89c2eb to #2563eb/#1d4ed8). This updates the inline Tailwind-style classes in the Footer Container to improve contrast and match the current brand palette.

Author: Deven14125

src/components/Footer/Footer.jsx

@@ -10,7 +10,7 @@ const footerLinkClasses =
 
 const Footer = () => (
   <footer className="w-full flex-[0_0_auto] print:hidden">
-    <Container className="mx-auto max-w-[900px] px-5 pb-[30px] pt-[40px] text-center [&_a]:text-[#63a7de] [&_a]:transition-colors [&_a:hover]:text-[#89c2eb] [&_a:hover]:underline">
+    <Container className="mx-auto max-w-[900px] px-5 pb-[30px] pt-[40px] text-center [&_a]:text-[#2563eb] [&_a]:transition-colors [&_a:hover]:text-[#1d4ed8] [&_a:hover]:underline">
       <div className="mb-[24px] flex justify-center">
         <a href="https://openjsf.org" target="_blank" rel="noopener noreferrer">
           <img