[Finder] Add case insensitive sort

Author: hmoreau

components/finder.rst

@@ -339,20 +339,24 @@ Sorting Results
 Sort the results by name, extension, size or type (directories first, then files)::
 
     $finder->sortByName();
+    $finder->sortByCaseInsensitiveName();
     $finder->sortByExtension();
     $finder->sortBySize();
     $finder->sortByType();
 
 .. versionadded:: 6.2
 
-    The ``sortByExtension()`` and ``sortBySize()`` methods were introduced in Symfony 6.2.
+    The ``sortByCaseInsensitiveName()``, ``sortByExtension()`` and ``sortBySize()`` methods were introduced in Symfony 6.2.
 
 .. tip::
 
     By default, the ``sortByName()`` method uses the :phpfunction:`strcmp` PHP
     function (e.g. ``file1.txt``, ``file10.txt``, ``file2.txt``). Pass ``true``
     as its argument to use PHP's `natural sort order`_ algorithm instead (e.g.
     ``file1.txt``, ``file2.txt``, ``file10.txt``).
+    
+    The ``sortByCaseInsensitiveName()`` method uses the case insensitive :phpfunction:`strcasecmp` PHP function.
+    Pass ``true`` as its argument to use PHP's case insensitive `natural sort order`_ algorithm instead (the :phpfunction:`strnatcasecmp` PHP function)
 
 Sort the files and directories by the last accessed, changed or modified time::