ide: fix problem with several 'Shortcuts' view

ide: fix problem with several 'Shortcuts' view [fixes #83464876]
thanks @andrushkevich, `KDTabView` already has a method that you'd want to use, you could do this as below:

```
pane = @tabView.getPaneByName 'Shortcuts'

return @tabView.showPane pane  if pane

@createPane_ new IDE.ShortcutsView, { name }
```