[Mod Compat] Custom Main Menu

**Describe the bug**
The last server button is removed by CMM (The Custom Main Menu Mod) (expected behavior) but is not listed in the debug.log file as being removed (unexpected behavior) and attempting to add it back in using a wrapped button (proper procedure) results in the button disappearing entirely (unexpected behavior).

**To Reproduce**
Steps to reproduce the behavior:
1. Install 5zig and CMM for 1.12.2 on a forge 1.12.2 Minecraft installation
2. Open the config folder and find 'mainmenu.json' in the 'CustomMainMenu' folder
3. Attempt to insert a wrapped button by using the button ID (typically found in the debug.log) and adding a button (for example, here's my code:
` "lastserver":
{
"text": "Last Server",
"posX": 2,
"posY": 48,
"width": 116,
"height": 20,
"wrappedButton": 98
},`
)
4. See error

**Expected behavior**
If everything was functioning properly, CMM would remove the last server button, log it in the debug.log, and a user of CMM could add it back in using the wrappedbutton function to restore its functionality.

**Desktop (please complete the following information):**
- OS: Windows 10
- Version: 10.0.18363 Build 18363