nvim: fix lsp config to display diagnostics and new config scheme

pkgsets/nvim/lsp.nix

@@ -41,6 +41,18 @@ lib.mkIf (lib.elem "nvim::lsp" config.machine.pkgs) {
             -- This will avoid an annoying layout shift in the screen
             vim.opt.signcolumn = 'yes'
 
+            vim.diagnostic.config({
+              virtual_text = true,
+              signs = {
+                text = {
+                  [vim.diagnostic.severity.ERROR] = '✘',
+                  [vim.diagnostic.severity.WARN] = '▲',
+                  [vim.diagnostic.severity.HINT] = '⚑',
+                  [vim.diagnostic.severity.INFO] = '»',
+                },
+              },
+            })
+
             ---Force a specific language for ltex-ls
             ---@param lang string
             function SetLtexLang(lang)
@@ -114,7 +126,8 @@ lib.mkIf (lib.elem "nvim::lsp" config.machine.pkgs) {
                   config.capabilities = require('blink.cmp').get_lsp_capabilities(config.capabilities)
                 ''
               }
-              lspconfig[server].setup(config)
+              vim.lsp.enable(server)
+              vim.lsp.config(server, config)
             end
           end
         '';