feat(buffers): add missing file mappings to buffer defaults

Author: cseickel

lua/neo-tree/sources/buffers/defaults.lua

@@ -17,9 +17,12 @@ local filesystem = {
       ["<bs>"] = "navigate_up",
       ["."] = "set_root",
       ["R"] = "refresh",
-      --["/"] = "filter_as_you_type",
-      --["f"] = "filter_on_submit",
-      --["<C-x>"] = "clear_filter",
+      ["a"] = "add",
+      ["d"] = "delete",
+      ["r"] = "rename",
+      ["c"] = "copy_to_clipboard",
+      ["x"] = "cut_to_clipboard",
+      ["p"] = "paste_from_clipboard",
     }
   },
   bind_to_cwd = true,