fix(hero): drop unused stats prop + colors import (TS6133 build errors)

Cloud Build's `tsc --noEmit` caught two unused-declaration errors that
Vite HMR didn't: `stats` on HeroSectionProps is no longer needed since
the stats moved to NumbersStrip, and `colors` is no longer imported in
NumbersStrip after dropping the green/italic accents. Remove both and
update the two callers (LandingPage + HomePage) to stop passing stats.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: MarkusNeusinger

app/src/components/HeroSection.tsx

@@ -7,7 +7,6 @@ import { PlotOfTheDayTerminal } from './PlotOfTheDayTerminal';
 import type { PlotOfTheDayData } from '../hooks/usePlotOfTheDay';
 
 interface HeroSectionProps {
-  stats: { specs: number; plots: number; libraries: number; lines_of_code?: number } | null;
   potd?: PlotOfTheDayData | null;
 }
 
@@ -17,7 +16,7 @@ interface HeroSectionProps {
  * on ultrawide. Each landing-page section below mirrors this width so the
  * page reads as one continuous grid.
  */
-export function HeroSection({ stats, potd = null }: HeroSectionProps) {
+export function HeroSection({ potd = null }: HeroSectionProps) {
   return (
     <Box
       sx={{

app/src/components/NumbersStrip.tsx

@@ -1,5 +1,5 @@
 import Box from '@mui/material/Box';
-import { colors, typography } from '../theme';
+import { typography } from '../theme';
 
 interface NumbersStripProps {
   stats: { specs: number; plots: number; libraries: number; lines_of_code?: number } | null;

app/src/pages/HomePage.tsx

@@ -196,7 +196,7 @@ export function HomePage() {
       {showHero && (
         <>
           <MastheadRule />
-          <HeroSection stats={stats} />
+          <HeroSection />
           <NumbersStrip stats={stats} />
           <LibrariesSection libraries={librariesData} onLibraryClick={handleLibraryClick} />
           <CodeShowcase />

app/src/pages/LandingPage.tsx

@@ -56,7 +56,7 @@ export function LandingPage() {
           }}
         >
           <Container maxWidth={false} sx={catalogContainerSx}>
-            <HeroSection stats={stats} potd={potd} />
+            <HeroSection potd={potd} />
             <NumbersStrip stats={stats} />
           </Container>
         </Box>