feat(mini.files): "g." to toggle hidden files

lua/lazyvim/plugins/extras/editor/mini-files.lua

@@ -26,4 +26,26 @@ return {
       desc = "Open mini.files (cwd)",
     },
   },
+  config = function(_, opts)
+    require("mini.files").setup(opts)
+
+    local show_dotfiles = true
+    local filter_show = function(fs_entry) return true end
+    local filter_hide = function(fs_entry) return not vim.startswith(fs_entry.name, ".") end
+
+    local toggle_dotfiles = function()
+      show_dotfiles = not show_dotfiles
+      local new_filter = show_dotfiles and filter_show or filter_hide
+      require("mini.files").refresh({ content = { filter = new_filter } })
+    end
+
+    vim.api.nvim_create_autocmd("User", {
+      pattern = "MiniFilesBufferCreate",
+      callback = function(args)
+        local buf_id = args.data.buf_id
+        -- Tweak left-hand side of mapping to your liking
+        vim.keymap.set("n", "g.", toggle_dotfiles, { buffer = buf_id })
+      end,
+    })
+  end,
 }