Revert SVG flags, keep emoji (Chrome/Windows limitation)

SVG flag rendering was inconsistent across browsers. Reverting to
emoji flags which work on most platforms. Chrome on Windows shows
country codes instead of flags - this is a known Chrome limitation.

Also fixes awkward phrasing: 'more correct' → 'improve the system'

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: kwschulz

astro.config.mjs

@@ -4,20 +4,19 @@ import sitemap from '@astrojs/sitemap';
 
 // 12 languages based on Home Assistant user demographics
 // See: https://analytics.home-assistant.io/
-// Flags use SVG files for cross-browser compatibility (Chrome/Windows doesn't render flag emoji)
 export const locales = {
-  en: { label: 'English', flag: '/assets/flags/us.svg' },
-  de: { label: 'Deutsch', flag: '/assets/flags/de.svg' },
-  nl: { label: 'Nederlands', flag: '/assets/flags/nl.svg' },
-  fr: { label: 'Français', flag: '/assets/flags/fr.svg' },
-  zh: { label: '中文', flag: '/assets/flags/cn.svg' },
-  it: { label: 'Italiano', flag: '/assets/flags/it.svg' },
-  es: { label: 'Español', flag: '/assets/flags/es.svg' },
-  pl: { label: 'Polski', flag: '/assets/flags/pl.svg' },
-  sv: { label: 'Svenska', flag: '/assets/flags/se.svg' },
-  ru: { label: 'Русский', flag: '/assets/flags/ru.svg' },
-  'pt-br': { label: 'Português', flag: '/assets/flags/br.svg' },
-  uk: { label: 'Українська', flag: '/assets/flags/ua.svg' },
+  en: { label: 'English', flag: '🇺🇸' },
+  de: { label: 'Deutsch', flag: '🇩🇪' },
+  nl: { label: 'Nederlands', flag: '🇳🇱' },
+  fr: { label: 'Français', flag: '🇫🇷' },
+  zh: { label: '中文', flag: '🇨🇳' },
+  it: { label: 'Italiano', flag: '🇮🇹' },
+  es: { label: 'Español', flag: '🇪🇸' },
+  pl: { label: 'Polski', flag: '🇵🇱' },
+  sv: { label: 'Svenska', flag: '🇸🇪' },
+  ru: { label: 'Русский', flag: '🇷🇺' },
+  'pt-br': { label: 'Português', flag: '🇧🇷' },
+  uk: { label: 'Українська', flag: '🇺🇦' },
 };
 
 export default defineConfig({