chore(neovim): update formatter configurations

modules/home-manager/cli/neovim/default.nix

@@ -71,7 +71,7 @@ in
         yaml-language-server
 
         # Formatters
-        nixfmt-rfc-style
+        alejandra
         shfmt
         yamlfmt
       ];

modules/home-manager/cli/neovim/files/plugins/conform.lua

@@ -4,10 +4,20 @@ require("conform").setup({
     timeout_ms = 500,
     lsp_format = "never",
   },
+  formatters = {
+    terraform = {
+      inherit = false,
+      command = "tofu",
+      args = { "fmt", "-" },
+      stdin = true,
+    },
+  },
   formatters_by_ft = {
-    yaml = {"yamlfmt"},
-    sh = { "shfmt" },
     go = { "gofmt" },
+    nix = { "alejandra" },
+    sh = { "shfmt" },
+    terraform = { "terraform" },
+    yaml = {"yamlfmt"},
     ["_"] = { "trim_whitespace" },
   }
 })