fix(nvim): temporary solution for eslint diagnostics

This uses none-ls to enable typescript-eslint diagnostics. But it is recommended to use the eslint-lsp instead. Haven't figured out how to get typescript-eslint diagnostics with eslint-lsp yet.

nvim/lua/config/options.lua

@@ -25,6 +25,8 @@ vim.opt.iskeyword:append("-") -- Add dashes to words
 vim.opt.wildignore:append({ "*/node_modules/*" }) -- Wildignore
 vim.opt.complete:append({ "i", "k", "s", "kspell" })
 
+vim.g.nonels_supress_issue58 = true
+
 -- Undercurl
 vim.cmd([[let &t_Cs = "\e[4:3m"]])
 vim.cmd([[let &t_Ce = "\e[4:0m"]])

nvim/lua/plugins/none-ls.lua

@@ -0,0 +1,18 @@
+return {
+  "nvimtools/none-ls.nvim",
+  enabled = true,
+  event = "LazyFile",
+  dependencies = { "mason.nvim" },
+  opts = function(_, opts)
+    local nls = require("null-ls")
+    opts.root_dir = opts.root_dir
+      or require("null-ls.utils").root_pattern(".null-ls-root", ".neoconf.json", "Makefile", ".git")
+    opts.sources = vim.list_extend(opts.sources or {}, {
+      nls.builtins.formatting.fish_indent,
+      nls.builtins.diagnostics.fish,
+      nls.builtins.diagnostics.eslint, -- TODO: How to get this feature in eslint-lsp?
+      nls.builtins.formatting.stylua,
+      nls.builtins.formatting.shfmt,
+    })
+  end,
+}