* feat(#2826): allow only one window with nvim-tree buffer per tab
* feat(#2826): remove globals.BUFNR_BY_TABID
* Revert "feat(#2826): remove globals.BUFNR_BY_TABID"
This reverts commit 2651f9b34a.
* feat(#2826): remove unused View.winid_by_tabid
* feat(#2826): add feature gate experimental.close_other_windows_in_tab