Provide command to open most recently closed file/editor

[Tyriar]

As far as I can tell a command doesn't exist to do this.

[bpasero]

Can you clarify? Would Ctrl+Tab work?

[Tyriar]

Essentially ctrl+tab with the default keybindings set. However I want it to work when using closeFile and closeAllFiles commands so it behaves like ctrl+shift+t in most tab management systems.

[Tyriar]

Related #726