toggle netrw previews with p

lua/netrw-preview.lua

@@ -657,10 +657,17 @@ function M.setup(buf)
   vim.keymap.set('n', 'p', function()
     state.win = vim.api.nvim_get_current_win()
     state.tab = vim.api.nvim_get_current_tabpage()
+
+    if find_preview_window(state.tab) then
+      close_timer(state)
+      close_preview(state)
+      return
+    end
+
     preview_selected(state, true)
   end, {
     buffer = buf,
-    desc = 'Netrw: Preview selection and enable live updates',
+    desc = 'Netrw: Toggle preview and live updates',
     nowait = true,
     silent = true,
   })