change nvim tree mapping

nvim/lua/custom/mappings.lua

@@ -361,4 +361,13 @@ M.lspconfig = {
   },
 }
 
+M.nvimtree = {
+  plugin = true,
+
+  n = {
+    -- toggle
+    ["<leader>e"] = { "<cmd> NvimTreeToggle <CR>", "Toggle nvimtree" },
+  },
+}
+
 return M

nvim/lua/custom/plugins.lua

@@ -267,7 +267,8 @@ local plugins = {
     keys = {
       {
         mode = { "v", "n" },
-        "<Leader>m",
+        --[[ "<Leader>m", ]]
+        "<C-n>",
         "<cmd>MCstart<cr>",
         desc = "Create a selection for selected text or word under the cursor",
       },