Nvim: many small changes around whole project

.config/nvim/lua/plugins/null.lua

@@ -1,22 +1,15 @@
 return {
   'nvimtools/none-ls.nvim',
   config = function()
-    null_ls = require("null-ls")
-    null_ls.setup({
+    local none_ls = require("null-ls")
+    none_ls.setup({
     sources = {
-      null_ls.builtins.formatting.stylua,
-      --null_ls.builtins.completion.spell,
-      null_ls.builtins.code_actions.gitsigns,
-      null_ls.builtins.diagnostics.gitlint,
-      null_ls.builtins.diagnostics.cmake_lint,
-      null_ls.builtins.diagnostics.codespell,
-      --null_ls.builtins.diagnostics.misspell,
-      null_ls.builtins.diagnostics.hadolint,
-      null_ls.builtins.diagnostics.buf,
-      --null_ls.builtins.code_actions.proselint,
-      --null_ls.builtins.diagnostics.proselint,
-      null_ls.builtins.hover.dictionary,
-      null_ls.builtins.formatting.black},
+      none_ls.builtins.code_actions.gitsigns,
+      none_ls.builtins.diagnostics.gitlint,
+      none_ls.builtins.diagnostics.cmake_lint,
+      none_ls.builtins.diagnostics.codespell,
+      none_ls.builtins.hover.dictionary,
+      none_ls.builtins.formatting.black},
     })
   end
 }