nvimtree: change g? to ? for help

lua/plugins/editor_mine.lua

@@ -42,8 +42,19 @@ return {
         end
       end
     end,
-    config = function()
+    opts = {
-      require("nvim-tree").setup()
+      -- https://github.com/nvim-tree/nvim-tree.lua?tab=readme-ov-file#custom-mappings
+      on_attach = function(bufnr)
+        local api = require("nvim-tree.api")
+        local function opts(desc)
+          return { desc = "nvim-tree: " .. desc, buffer = bufnr, noremap = true, silent = true, nowait = true }
+        end
+        api.config.mappings.default_on_attach(bufnr)
+        vim.keymap.set("n", "?", api.tree.toggle_help, opts("Help"))
+      end,
+    },
+    config = function(_, opts)
+      require("nvim-tree").setup(opts)
     end,
   },
 }