cleanup and remove unused plugins

lua/core/settings.lua

@@ -61,11 +61,8 @@ vim.api.nvim_set_option("splitright",true)
 
 -- disable Netrw-Banner
 vim.g.netrw_banner = 0
-
--- disable Netrw for Filetree Plugin
-vim.g.loaded_netrw = 1
-vim.g.loaded_netrwPlugin = 1
-
+vim.g.netrw_browse_split = 0
+vim.g.netrw_winsize = 25
 
 -- undotree file management
 vim.opt.swapfile = false