fix: update install badge to display millions instead of thousands (#427)

Co-authored-by: Roo Code <[email protected]>

Author: roomote[bot]

src/components/GitHubInstallButtons/index.tsx

@@ -6,6 +6,10 @@ import styles from './styles.module.css';
 
 // Number formatting function
 function formatNumber(num: number): string {
+  if (num >= 1000000) {
+    const truncated = Math.floor((num / 1000000) * 10) / 10;
+    return truncated.toFixed(1) + "M";
+  }
   const truncated = Math.floor((num / 1000) * 10) / 10;
   return truncated.toFixed(1) + "k";
 }