nvim: lsp-utils: Update Haskell LSP settings

checkProject if set to true, type checks the entire project on initial
load. If activated by default which it is, can lead to bad performance
in large projects.

nvim/.config/nvim/lua/lsp-utils.lua

@@ -189,7 +189,15 @@ function M.hls_config()
     root_dir            = root_directory,
     filetypes           = { 'haskell' },
     single_file_support = true,
-    settings            = { haskell = { formattingProvider = 'ormolu' } },
+    settings            = {
+      haskell = {
+        checkParents       = 'CheckOnSave',
+        checkProject       = false,
+        formattingProvider = 'ormolu',
+        maxCompletions     = 20,
+        plugin             = { stan = { globalOn = false } }
+      }
+    },
   }
 end