nvim: Remove nvim-tree; Add oil.nvim

nvim/.config/nvim/lua/plugins/oil.lua

@@ -0,0 +1,13 @@
+return {
+    'stevearc/oil.nvim',
+    opts = {},
+    dependencies = {
+        "nvim-tree/nvim-web-devicons"
+    },
+    init = function()
+        vim.keymap.set("n", "-", "<CMD>Oil<CR>", {
+            desc = "Open parent directory"
+        })
+    end,
+    lazy = false
+}