Mousepad not listed as a dependency

So I recently installed this on Xubuntu 24.04 minimal installation, and get the following error message with the installer script:

```
Traceback (most recent call last):
File "/home/brian/Desktop/Chicago95/./installer.py", line 412, in install
subprocess.Popen(["mousepad", running_folder+"/Extras/post_install.txt"])
File "/usr/lib/python3.12/subprocess.py", line 1026, in __init__
self._execute_child(args, executable, preexec_fn, close_fds,
File "/usr/lib/python3.12/subprocess.py", line 1955, in _execute_child
raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: 'mousepad'
Install Completed! Enjoy Chicago95!
```

Other than that, it seems to have worked fine.

Thanks for this theme. It has really exceeded my expectations.