fixing diagnostic

config/init.lua

@@ -93,8 +93,11 @@ vim.diagnostic.config({
     signs = true,
     underline = true,
     update_in_insert = false,
-    severity_sort = true,
+    severity_sort = false,
 })
+
+vim.o.updatetime = 250
+
 vim.api.nvim_create_autocmd("CursorHold", {
     buffer = bufnr,
     callback = function()
@@ -111,6 +114,7 @@ vim.api.nvim_create_autocmd("CursorHold", {
 })
 
 -- lsp mappingsd
+vim.keymap.set('n', '<leader>e', vim.diagnostic.open_float, opts)
 vim.keymap.set('n', '<leader>gD', vim.lsp.buf.declaration, opts)
 vim.keymap.set('n', '<leader>gd', vim.lsp.buf.definition, opts)
 vim.keymap.set('n', '<leader>rn', vim.lsp.buf.rename, opts)