[Crash] Empty modpack name

[USSX-Hares]

Steps to Reproduce:

1. Click "New Modpack"
2. Delete its name, save it with the empty name
3. Add any mod to any other modpack
4. App freezes for ~2s, then crashes

This reproduces every time

Environment:

App version: v4.3.4.42-beta

OS Info:

• Edition Windows 10 Pro
• Version 22H2
• Installed on ‎2022-‎03-‎12
• OS build 19045.3448
• Experience Windows Feature Experience Pack 1000.19044.1000.0