feat: update CallToAction component styling and add cyan glow effect

- Replaced hardcoded heading and paragraph elements with reusable H3 and P components
- Added cyan radial glow SVG overlay to HomeBlink for enhanced visual atmosphere
- Updated audience images (7.jpg and 8.jpg)

src/pages/home/CallToAction.tsx

@@ -1,5 +1,6 @@
 import { Container } from '@/components/Container'
 import { Button } from '@/components/Button'
+import { H3, P } from '@/components/Texts'
 
 export function CallToAction() {
   return (
@@ -37,18 +38,18 @@ export function CallToAction() {
 
         <Container className="relative">
           <div className="mx-auto max-w-2xl text-center">
-            <h2 className="text-3xl lg:text-4xl font-medium tracking-tight text-white sm:text-4xl">
+            <H3 className=" text-white ">
               A Living Network
-            </h2>
+            </H3> 
 
-            <p className="mt-6 text-lg text-gray-300">
+            <P className="mt-6 text-gray-300">
               Mycelium isn’t a platform.
               It’s the soil where a new internet grows — open, resilient, and alive.
-            </p>
+            </P>
 
-            <p className="mt-4 text-lg text-gray-300">
+            <P className="mt-4 text-gray-300">
               The self-sovereign network powering the next internet.
-            </p>
+            </P>
 
             <div className="mt-10 flex flex-wrap justify-center gap-x-6 gap-y-4">
               <Button to="/cloud" variant="solid" color="cyan">