Hi,
1. How can I delete a project? I want to remove it from "recent projects".
If you just remove the project folder, or move it to a new path, or rename it then it will automatically disappear from the recent list in the app
2. When I accidentally choose file/open I can't close the modal window - I have only options to choose a project or to create a new one. So, I'll lose my recent changes to my open project.
You can still go to menu and save the file, or ctrl + s , but if you would like to remove the modal without reopening the app as a workaround you could open any other modal like
render for example ctrl + r and then you have the close button there. Anyway I note it and will add close button in the open project modal.
Kind regards