feat(nvim): use icons signs for lsp diagnostics

home-manager/neovim/lspconfig.lua

@@ -139,7 +139,7 @@ vim.diagnostic.config({
     signs = true,
     update_in_insert = true,
     underline = true,
-    severity_sort = false,
+    severity_sort = true,
     float = {
         border = "rounded",
         source = "always",
@@ -148,6 +148,13 @@ vim.diagnostic.config({
     },
 })
 
+-- setup diagnostics signs
+local diagnostics_signs = { Error = "", Want = "", Hint = "", Info = "" }
+for type, icon in pairs(diagnostics_signs) do
+    local hl = "DiagnosticSign" .. type
+    vim.fn.sign_define(hl, { text = icon, texthl = hl, numhl = hl })
+end
+
 -- setup html languageserver
 lspconfig["html"].setup({
     cmd = { "html-languageserver", "--stdio" },