update sln picker color random logic

src/SharpIDE.Godot/Features/SlnPicker/RandomRecentSlnColours.cs

@@ -33,10 +33,14 @@ public static class RandomRecentSlnColours
     {
         var hashBytes = MD5.HashData(Encoding.UTF8.GetBytes(filePath));
 
-        // Convert first 4 bytes to an int
-        var hash = BitConverter.ToInt32(hashBytes, 0);
+        // Use all 16 bytes instead of just the first 4
+        var hash = BitConverter.ToUInt32(hashBytes, 12) ^
+                   BitConverter.ToUInt32(hashBytes, 8) ^
+                   BitConverter.ToUInt32(hashBytes, 4) ^
+                   BitConverter.ToUInt32(hashBytes, 0);
 
-        var index = Math.Abs(hash) % AllColours.Count;
+        var random = new Random((int)hash);
+        var index = random.Next(AllColours.Count);
         return AllColours[index];
     }
 }

src/SharpIDE.Godot/Features/SlnPicker/SlnPicker.tscn

@@ -107,6 +107,7 @@ layout_mode = 2
 [node name="ScrollContainer" type="ScrollContainer" parent="VSplitContainer/Panel/MarginContainer2/VBoxContainer2"]
 layout_mode = 2
 size_flags_vertical = 3
+follow_focus = true
 
 [node name="PreviousSlnsVBoxContainer" type="VBoxContainer" parent="VSplitContainer/Panel/MarginContainer2/VBoxContainer2/ScrollContainer"]
 unique_name_in_owner = true