Correcting the typo of Flutter in projects (#6850)

In part of the documentation, Flutter is spelled out with a typo. I fixed it using a repository search.

- [] The title of the PR starts with the name of the package surrounded by square brackets, e.g. `[shared_preferences]`

Author: meg4cyberc4t

packages/camera/camera_android_camerax/lib/src/android_camera_camerax_flutter_api_impls.dart

@@ -182,7 +182,7 @@ class AndroidCameraXCameraFlutterApis {
   late final FocusMeteringResultFlutterApiImpl
       focusMeteringResultFlutterApiImpl;
 
-  /// Fluter Api implementation for [Camera2CameraInfo].
+  /// Flutter Api implementation for [Camera2CameraInfo].
   late final Camera2CameraInfoFlutterApiImpl camera2CameraInfoFlutterApiImpl;
 
   /// Ensures all the Flutter APIs have been setup to receive calls from native code.

script/tool/lib/src/create_all_packages_app_command.dart

@@ -429,7 +429,7 @@ dev_dependencies:${_pubspecMapString(pubspec.devDependencies)}
     _adjustFile(
       pbxprojFile,
       replacements: <String, List<String>>{
-        // iOS 14 is required by google_maps_fluter.
+        // iOS 14 is required by google_maps_flutter.
         'IPHONEOS_DEPLOYMENT_TARGET': <String>[
           '				IPHONEOS_DEPLOYMENT_TARGET = 14.0;'
         ],

script/tool/lib/src/pubspec_check_command.dart

@@ -473,7 +473,7 @@ class PubspecCheckCommand extends PackageLoopingCommand {
     Version? minMinFlutterVersion,
   }) {
     String unknownDartVersionError(Version flutterVersion) {
-      return 'Dart SDK version for Fluter SDK version '
+      return 'Dart SDK version for Flutter SDK version '
           '$flutterVersion is unknown. '
           'Please update the map for getDartSdkForFlutterSdk with the '
           'corresponding Dart version.';

script/tool/lib/src/update_min_sdk_command.dart

@@ -45,7 +45,7 @@ class UpdateMinSdkCommand extends PackageLoopingCommand {
     _flutterMinVersion = Version.parse(getStringArg(_flutterMinFlag));
     final Version? dartMinVersion = getDartSdkForFlutterSdk(_flutterMinVersion);
     if (dartMinVersion == null) {
-      printError('Dart SDK version for Fluter SDK version '
+      printError('Dart SDK version for Flutter SDK version '
           '$_flutterMinVersion is unknown. '
           'Please update the map for getDartSdkForFlutterSdk with the '
           'corresponding Dart version.');

script/tool/test/pubspec_check_command_test.dart

@@ -1518,7 +1518,7 @@ ${_topicsSection()}
       expect(
         output,
         containsAllInOrder(<Matcher>[
-          contains('Dart SDK version for Fluter SDK version 2.0.0 is unknown'),
+          contains('Dart SDK version for Flutter SDK version 2.0.0 is unknown'),
         ]),
       );
     });