Hide "Close File" button if on welcome screen

[Palloxin]

Check for existing issues

• Completed

Describe the feature

Since it's welcome screen

If applicable, add mockups / screenshots to help present your vision of the feature

No response

[bajrangCoder]

Every tab in editor is like a file whether it's custom page or something so that option is just to close that tab(file).
So I don't think we should hide that.