feat: add oil.nvim

lua/plugins/common.lua

@@ -42,6 +42,16 @@ return {
   -- cargo crates
   { 'saecki/crates.nvim', dependencies = 'nvim-lua/plenary.nvim', opts = {} },
 
+  --
+  {
+    'stevearc/oil.nvim',
+    dependencies = { 'nvim-tree/nvim-web-devicons' },
+    config = function()
+      require('oil').setup()
+      vim.keymap.set('n', '-', require('oil').open, { desc = 'Open parent directory' })
+    end,
+  },
+
   -- newage search plugin
   {
     'ggandor/leap.nvim',