feat(config): added new plugins

lua/plugins/neo-tree.lua

@@ -0,0 +1,21 @@
+return {
+  {
+    "nvim-neo-tree/neo-tree.nvim",
+    opts = {
+      -- window = {
+      --   mappings = {
+      --     ["o"] = "open",
+      --   },
+      -- },
+      filesystem = {
+        bind_to_cwd = true,
+        window = {
+          mappings = {
+            ["/"] = "none",
+          },
+        },
+        -- follow_current_file = { enabled = true },
+      },
+    },
+  },
+}

lua/plugins/rainbow.lua

@@ -0,0 +1,3 @@
+return {
+  "HiPhish/rainbow-delimiters.nvim",
+}