Fix rainbow delimiters definition.

lua/core/plugins/init.lua

@@ -94,7 +94,9 @@ local plugins = {
   },
   --]]
 
-  'rainbow-delimiters.nvim',
+  {
+    'HiPhish/rainbow-delimiters.nvim',
+  },
 
   {
     -- Set lualine as statusline

lua/core/setup/syntax-highlight.lua

@@ -11,7 +11,7 @@ require('nvim-treesitter.configs').setup {
   auto_install = false,
 
   highlight = { enable = true },
-  -- indent = { enable = true },
+  indent = { enable = true },
   incremental_selection = {
     enable = true,
     keymaps = {