change hard-coded photo dir

Program.cs

@@ -306,7 +306,7 @@ public class Game : GameWindow {
     GL.VertexAttribPointer(texCoordLocation, 2, VertexAttribPointerType.Float, false, 5 * sizeof(float), 3 * sizeof(float));
 
     // Load textures from JPEGs.
-    string[] files = Directory.GetFiles(@"c:\users\colin\pictures\photos\2023\06\27\");
+    string[] files = Directory.GetFiles(@"c:\users\colin\desktop\photos-test\");
     foreach (string file in files) {
       if (file.ToLower().EndsWith(".jpg")) {
         Image<Rgba32> image = Image.Load<Rgba32>(file);