Update use_native_dialog description in FileDialog

Author: syntaxerror247

doc/classes/FileDialog.xml

@@ -164,7 +164,7 @@
 		<member name="size" type="Vector2i" setter="set_size" getter="get_size" overrides="Window" default="Vector2i(640, 360)" />
 		<member name="title" type="String" setter="set_title" getter="get_title" overrides="Window" default="&quot;Save a File&quot;" />
 		<member name="use_native_dialog" type="bool" setter="set_use_native_dialog" getter="get_use_native_dialog" default="false">
-			If [code]true[/code], [member access] is set to [constant ACCESS_FILESYSTEM], and it is supported by the current [DisplayServer], OS native dialog will be used instead of custom one.
+			If [code]true[/code], and if supported by the current [DisplayServer], OS native dialog will be used instead of custom one.
 			[b]Note:[/b] On Linux and macOS, sandboxed apps always use native dialogs to access the host file system.
 			[b]Note:[/b] On macOS, sandboxed apps will save security-scoped bookmarks to retain access to the opened folders across multiple sessions. Use [method OS.get_granted_permissions] to get a list of saved bookmarks.
 			[b]Note:[/b] Native dialogs are isolated from the base process, file dialog properties can't be modified once the dialog is shown.