[BUG] 86Box Manager allows for folders to be created/named with spaces

[10x7]

(PLEASE DO THIS INSIDE A SAFE ENVIROMENT IF TO REPRODUCE)
If its too late please try the steps I provided to fix it

Describe the bug
86Box Manager allow for user to create/name a folder with spaces included

To reproduce this bug

• open 86Box Manager
• (click add or) Add a virtual machine
• name (the virtual machine) it (ex: hello or this has spaces )
• after the virtual machine is created select the virtual machine and click configure
• open any file explorer, go to where the virtual machine is located
• try and remove the folder

Environment:

• Host OS: Windows 10 Pro (10.0.19045 Build 19045)
• 86Box Manager Version 1.7.4

Note:
I'm new to github, If you think this report has an error or i did feel free to correct me

To fix the folder issue:
If you already tried reproducing the bug and can't get rid of the ghost folder you could use 7-Zip and remove the space character (by renaming it) and then deleting it

Screenshots:

Even renaming/deleting it results in error (nor chkdisk recgonize this folder)

[daviunic]

Can confirm, trailing spaces aren't trimmed from the name, resulting in Windows acting up with such a folder.

[daviunic]

Fixed in the latest commit, will be part of 1.7.5 soon.