feat(live-filter): add ability to live filter out nodes in the tree (#1056)

lua/nvim-tree/core.lua

@@ -1,5 +1,6 @@
 local events = require "nvim-tree.events"
 local explorer = require "nvim-tree.explorer"
+local live_filter = require "nvim-tree.live-filter"
 local view = require "nvim-tree.view"
 
 local M = {}
@@ -28,6 +29,9 @@ function M.get_nodes_starting_line()
   if view.is_root_folder_visible(M.get_cwd()) then
     offset = offset + 1
   end
+  if live_filter.filter then
+    return offset + 1
+  end
   return offset
 end