feat: Add codespell

flake.nix

@@ -65,6 +65,7 @@
           alejandra
           bash-language-server
           biome
+          codespell
           curl
           docker-compose-language-service
           dockerfile-language-server-nodejs

lua/plugins/nvim-lint.lua

@@ -3,6 +3,7 @@ return {
     'mfussenegger/nvim-lint',
     opts = {
       linters_by_ft = {
+        ['*'] = { 'codespell' },
         bash = { 'shellcheck' },
         css = { 'stylelint' },
         scss = { 'stylelint' },