Add diagnostic config

.config/nvim/init.lua

@@ -3,3 +3,4 @@ require("ftdetect")
 require("keymaps")
 require("highlight")
 require("paq-setup")
+require("diagnostic")

.config/nvim/lua/diagnostic.lua

@@ -0,0 +1,10 @@
+-- Source: <https://vonheikemen.github.io/devlog/tools/neovim-lsp-client-guide/>
+vim.diagnostic.config({
+  signs = true,
+  underline = false,
+  severity_sort = true,
+})
+
+vim.keymap.set("n", "<leader>dl", vim.diagnostic.open_float)
+vim.keymap.set("n", "<leader>dj", vim.diagnostic.goto_prev)
+vim.keymap.set("n", "<leader>dk", vim.diagnostic.goto_next)