Fail recovery for project creation

It is possible to break a project during project creation.

Steps to reproduce:

• place a breakpoint here
• create a new project
• As soon as the thread is held by the breakpoint, kill the application server.

Some first thoughts on the solution:

Put a "done marker file" somewhere as the last step of the project creation. If there is a project without this done marker, we should not let the user access the project (we should also add an indicator icon of the corrupted project).

We should also add a context menu in that case, where the project owner is able to delete this project from the space screen. This context menu it's a kebab menu and an indicator that the project is corrupted.