refactor: replace RobotCategoryGrid with CategoryShowcaseScroll and update styles across components

- Updated HomePage to use CategoryShowcaseScroll instead of RobotCategoryGrid for better category display.
- Modified BrandShowcase component to adjust background gradients and text colors for improved aesthetics.
- Changed CompanyStory component to enhance visual consistency with updated accent colors.
- Refined ExclusiveAccessSection to align with new design standards, including gradient adjustments.
- Enhanced Hero3DRobotics with new gradient backgrounds and updated text colors for better readability.
- Updated RoboticsScrollShowcase to reflect new color scheme and improved text visibility.
- Adjusted RoboticsSplineShowcase to maintain design consistency with updated colors and gradients.
- Improved MotionSection to enhance scroll behavior and visibility transitions.
- Updated container-scroll-animation styles for better visual effects.
- Introduced new CategoryShowcaseScroll component for a more dynamic category display experience.

src/app/page.tsx

@@ -3,7 +3,7 @@ import { Navbar } from '@/components/Navbar';
 import { FooterAndContact } from '@/components/FooterAndContact';
 import { Hero3DRobotics } from '@/components/robotics/Hero3DRobotics';
 import { BrandShowcase } from '@/components/robotics/BrandShowcase';
-import { RobotCategoryGrid } from '@/components/robotics/RobotCategoryGrid';
+import { CategoryShowcaseScroll } from '@/components/robotics/CategoryShowcaseScroll';
 import { RobotProductCard } from '@/components/robotics/RobotProductCard';
 import { IndustryUseCases } from '@/components/robotics/IndustryUseCases';
 import { DemoCTA } from '@/components/robotics/DemoCTA';
@@ -88,9 +88,9 @@ export default function HomePage() {
             <SectionHeading
               eyebrow="Robot categories"
               title="From quadruped patrol to humanoid concierge."
-              description="Find the right robot for your business humanoid for events and education, quadruped for inspection and security, service and delivery for hospitality."
+              description="Find the right robot for your business — humanoid platforms for events and education, quadrupeds for inspection and security, and service robots for hospitality, delivery, and cleaning."
             />
-            <RobotCategoryGrid />
+            <CategoryShowcaseScroll />
           </div>
         </MotionSection>