feat(#2598): add api.tree.resize (#2811)

* feat(#2598): Implemented API `tree.resize`

* rely on  when resize

* Fix docs

---------

Co-authored-by: Alexander Courtis <alex@courtis.org>

lua/nvim-tree/api.lua

@@ -100,6 +100,13 @@ Api.tree.close_in_this_tab = wrap(view.close_this_tab_only)
 Api.tree.close_in_all_tabs = wrap(view.close_all_tabs)
 Api.tree.reload = wrap(actions.reloaders.reload_explorer)
 
+---@class ApiTreeResizeOpts
+---@field width string|function|number|table|nil
+---@field absolute number|nil
+---@field relative number|nil
+
+Api.tree.resize = wrap(actions.tree.resize.fn)
+
 Api.tree.change_root = wrap(function(...)
   require("nvim-tree").change_dir(...)
 end)