Improve file ordering to use filename only

Co-authored-by: mdellison90-stack <230609064+mdellison90-stack@users.noreply.github.com>

Author: Copilot

src/shared/Core/Interop/Linux/LinuxSettings.cs

@@ -64,7 +64,7 @@ private IDictionary<string, string> ReadExternalConfiguration()
             }
 
             // Get all the files in the configuration directory and sort them alphabetically
-            IEnumerable<string> files = _fs.EnumerateFiles(configDir, "*").OrderBy(f => f);
+            IEnumerable<string> files = _fs.EnumerateFiles(configDir, "*").OrderBy(f => Path.GetFileName(f));
 
             // Read the contents of each file and concatenate them together
             var combinedFile = new StringBuilder();