feat: use lsp_lines

flake.nix

@@ -171,6 +171,7 @@
               crates-nvim
               haskell-tools-nvim
               vim-wakatime
+              lsp_lines-nvim
             ];
           };
 

lua/lsp/init.lua

@@ -1,4 +1,11 @@
 return function()
+  local symbols = { Error = "󰅙", Info = "󰋼", Hint = "󰌵", Warn = "" }
+
+  for name, icon in pairs(symbols) do
+    local hl = "DiagnosticSign" .. name
+    vim.fn.sign_define(hl, { text = icon, numhl = hl, texthl = hl })
+  end
+
   local lspconfig = require("lspconfig")
 
   lspconfig.lua_ls.setup({

lua/plugins/lz-spec.lua

@@ -237,4 +237,15 @@ return {
   },
   { "rustaceanvim" },
   { "haskell-tools.nvim" },
+  {
+    "lsp_lines.nvim",
+    event = "LspAttach",
+    after = function()
+      require("lsp_lines").setup()
+      vim.diagnostic.config({
+        virtual_text = false,
+        virtual_lines = { only_current_line = true },
+      })
+    end,
+  },
 }