[file_selector] Fix comment typo (flutter#6027)

Replaces "pltaform" with "platform" in each instance.

Author: stuartmorgan-g

packages/file_selector/file_selector/CHANGELOG.md

@@ -1,5 +1,6 @@
-## NEXT
+## 1.0.3
 
+* Fixes a typo in documentation comments.
 * Updates support matrix in README to indicate that iOS 11 is no longer supported.
 * Clients on versions of Flutter that still support iOS 11 can continue to use this
   package with iOS 11, but will not receive any further updates to the iOS implementation.

packages/file_selector/file_selector/lib/file_selector.dart

@@ -12,7 +12,7 @@ export 'package:file_selector_platform_interface/file_selector_platform_interfac
 /// Opens a file selection dialog and returns the path chosen by the user.
 ///
 /// [acceptedTypeGroups] is a list of file type groups that can be selected in
-/// the dialog. How this is displayed depends on the pltaform, for example:
+/// the dialog. How this is displayed depends on the platform, for example:
 /// - On Windows and Linux, each group will be an entry in a list of filter
 ///   options.
 /// - On macOS, the union of all types allowed by all of the groups will be
@@ -44,7 +44,7 @@ Future<XFile?> openFile({
 /// user.
 ///
 /// [acceptedTypeGroups] is a list of file type groups that can be selected in
-/// the dialog. How this is displayed depends on the pltaform, for example:
+/// the dialog. How this is displayed depends on the platform, for example:
 /// - On Windows and Linux, each group will be an entry in a list of filter
 ///   options.
 /// - On macOS, the union of all types allowed by all of the groups will be
@@ -74,7 +74,7 @@ Future<List<XFile>> openFiles({
 /// Opens a save dialog and returns the target path chosen by the user.
 ///
 /// [acceptedTypeGroups] is a list of file type groups that can be selected in
-/// the dialog. How this is displayed depends on the pltaform, for example:
+/// the dialog. How this is displayed depends on the platform, for example:
 /// - On Windows and Linux, each group will be an entry in a list of filter
 ///   options.
 /// - On macOS, the union of all types allowed by all of the groups will be

packages/file_selector/file_selector/pubspec.yaml

@@ -3,7 +3,7 @@ description: Flutter plugin for opening and saving files, or selecting
   directories, using native file selection UI.
 repository: https://github.com/flutter/packages/tree/main/packages/file_selector/file_selector
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+file_selector%22
-version: 1.0.2
+version: 1.0.3
 
 environment:
   sdk: ">=3.0.0 <4.0.0"