refactor plugins into directory

lua/plugins/treesitter.lua

@@ -0,0 +1,51 @@
+return {
+  {
+    'nvim-treesitter/nvim-treesitter',
+    build = ':TSUpdate',
+    opts = {
+      ensure_installed = {
+        'bash',
+        'c',
+        'cmake',
+        'cpp',
+        'css',
+        'cuda',
+        'diff',
+        'dockerfile',
+        'dot',
+        'go',
+        'gomod',
+        'html',
+        'java',
+        'javascript',
+        'json',
+        'json5',
+        'latex',
+        'llvm',
+        'lua',
+        'luadoc',
+        'make',
+        'markdown',
+        'markdown_inline',
+        'nix',
+        'python',
+        'query',
+        'rst',
+        'toml',
+        'vim',
+        'vimdoc',
+        'yaml',
+      },
+      auto_install = true,
+      highlight = {
+        enable = true,
+        additional_vim_regex_highlighting = { 'ruby' },
+      },
+      indent = { enable = true, disable = { 'ruby' } },
+    },
+    config = function(_, opts)
+      ---@diagnostic disable-next-line: missing-fields
+      require('nvim-treesitter.configs').setup(opts)
+    end,
+  },
+}