Revert "Switch from Noto Emoji to Noto Color Emoji and update font data"

lib/web_ui/dev/generate_fallback_font_data.dart

@@ -64,8 +64,7 @@ class GenerateFallbackFontDataCommand extends Command<bool>
     final Map<String, Uri> urlForFamily = <String, Uri>{};
     for (final Map<String, dynamic> fontData in fontDatas) {
       if (fallbackFonts.contains(fontData['family'])) {
-        final Uri uri = Uri.parse(fontData['files']['regular'] as String)
-            .replace(scheme: 'https');
+        final Uri uri = Uri.parse(fontData['files']['regular'] as String).replace(scheme: 'https');
         urlForFamily[fontData['family'] as String] = uri;
       }
     }
@@ -83,11 +82,7 @@ class GenerateFallbackFontDataCommand extends Command<bool>
     }
     for (final String family in fallbackFonts) {
       print('Downloading $family...');
-      final Uri? uri = urlForFamily[family];
-      if (uri == null) {
-        throw ToolExit('Unable to determine URL to download $family. '
-            'Check if it is still hosted on Google Fonts.');
-      }
+      final Uri uri = urlForFamily[family]!;
       final http.Response fontResponse = await client.get(uri);
       if (fontResponse.statusCode != 200) {
         throw ToolExit('Failed to download font for $family');
@@ -165,7 +160,7 @@ class GenerateFallbackFontDataCommand extends Command<bool>
 
 const List<String> fallbackFonts = <String>[
   'Noto Sans',
-  'Noto Color Emoji',
+  'Noto Emoji',
   'Noto Sans Symbols',
   'Noto Sans Symbols 2',
   'Noto Sans Adlam',
@@ -247,7 +242,7 @@ const List<String> fallbackFonts = <String>[
   'Noto Sans Mro',
   'Noto Sans Multani',
   'Noto Sans Myanmar',
-  'Noto Sans NKo',
+  'Noto Sans N Ko',
   'Noto Sans Nabataean',
   'Noto Sans New Tai Lue',
   'Noto Sans Newa',