feat(#2654): filters.custom may be a function (#2655)

* feat(#2654): add `binaries` field to `filters`

* feat(#2648): allow functions in `filters.custom`

* ci: fix: stylua check

* ci: fix: add new keybind and config to docs

* fix: replace os-specific binary filter with `vim.fn.executable`

* fix: remove function and mapping for `binaries` filter

* fix: add `node` parameter to custom filter function

* fix: update doc for custom filter function signature

* fix: add custom filter to `ACCEPTED_TYPES`

* fix: accept single function for custom filter

* fix: change custom filter on `ACCEPTED_TYPES`

* fix: revert to using `path` for custom filter function

* fix: use `function` type for custom filter

* fix: type for custom filter in help

* fix: custom filter single function no longer mutates `M.config.filter_custom`

* fix: remove dead `if` statement in custom filter

* fix: separate custom filter function from `M.ignore_list`

* doc nit

---------

Co-authored-by: darcy <44690813+darccyy@users.noreply.github.com>
Co-authored-by: Alexander Courtis <alex@courtis.org>

lua/nvim-tree.lua

@@ -623,6 +623,9 @@ local ACCEPTED_TYPES = {
     group_empty = { "boolean", "function" },
     root_folder_label = { "function", "string", "boolean" },
   },
+  filters = {
+    custom = { "function" },
+  },
   actions = {
     open_file = {
       window_picker = {