LazyGit crashes, when opened in a TMUX-Pane with wrong `default-terminal`

**Describe the bug**
I've had an spelling mistake in my TMUX-config.

`-set -g default-terminal tmux-256colop`
should be
`-set -g default-terminal tmux-256color`

For some reason, the spelling mistake prevented Lazygit from starting, when opened in a new Pane or Window.

```bash
tmux split-pane 'lazygit || bash'
```


Lazygit is the only TUI application that crashed, because of this.

**To Reproduce**

1. Install `tmux` and `lazygit`.
2. Create a `.tmux.conf` file in your $HOME directory.
3. Open the `.tmux.conf` file and write `-set -g default-terminal tmux-256colop`.
4. Save and exit the file.
5. Run the `tmux` command.
6. Now, from within TMUX try to open lazygit via the following command.
```bash
tmux split-pane 'lazygit || bash'
```

**Expected behavior**
To not crash.

**Version info:**
Lazygit - Version
```
commit=, build date=, build source=Homebrew, version=0.50.0, os=darwin, arch=arm64, git version=2.39.5 (Apple Git-154)
```

Git - Version:
```
git version 2.39.5 (Apple Git-154)
```

TMUX - Version:
```
tmux 3.5a
```

**Additional context**
Setting the `default-terminal` to `tmux-256color` fixes the issue, but as said above, Lazygit is the only application, i've encountered, that creashes because of that spelling mistake.