refacto: move toggle help and filter toggles into actions

also fix explorer to properly remove element on update when filter is
applied

lua/nvim-tree/explorer/reload.lua

@@ -37,8 +37,8 @@ function M.reload(node, cwd, status)
 
     local abs = utils.path_join({cwd, name})
     t = t or (uv.fs_stat(abs) or {}).type
-    child_names[abs] = true
     if not nodes_by_path[abs] and not eutils.should_ignore(abs) and not eutils.should_ignore_git(abs, status.files) then
+      child_names[abs] = true
       if t == 'directory' and uv.fs_access(abs, 'R') then
         table.insert(node.nodes, builders.folder(abs, name, status, node_ignored))
       elseif t == 'file' then
@@ -52,6 +52,7 @@ function M.reload(node, cwd, status)
     end
   end
 
+  dump(child_names)
   for i, n in ipairs(node.nodes) do
     if not child_names[n.absolute_path] then
       table.remove(node.nodes, i)