feat(extras): add terraform extra (#1030)

lua/lazyvim/plugins/extras/lang/terraform.lua

@@ -0,0 +1,33 @@
+return {
+  {
+    "nvim-treesitter/nvim-treesitter",
+    opts = function(_, opts)
+      if type(opts.ensure_installed) == "table" then
+        vim.list_extend(opts.ensure_installed, {
+          "terraform",
+          "hcl",
+        })
+      end
+    end,
+  },
+  {
+    "neovim/nvim-lspconfig",
+    opts = {
+      servers = {
+        terraformls = {},
+      },
+    },
+  },
+  {
+    "jose-elias-alvarez/null-ls.nvim",
+    opts = function(_, opts)
+      if type(opts.sources) == "table" then
+        local null_ls = require("null-ls")
+        vim.list_extend(opts.sources, {
+          null_ls.builtins.formatting.terraform_fmt,
+          null_ls.builtins.diagnostics.terraform_validate,
+        })
+      end
+    end,
+  },
+}