update badges, cosmetic things and UI change

vite.config.ts

@@ -12,7 +12,7 @@ const gitHash = execSync('git rev-parse --short HEAD').toString().trim()
 
 export default defineConfig({
   plugins: [react()],
-  base: process.env.CF_PAGES ? '/' : '/seedpgp-web-app/',
+  base: '/',  // Always use root, since we're Cloudflare Pages only
   publicDir: 'public',  // ← Explicitly set (should be default)
   build: {
     outDir: 'dist',