fix: add function for resolving workspace folder

lua/plugins/lsp.lua

@@ -27,6 +27,12 @@ return {
 						command = "EslintFixAll",
 					})
 				end,
+        on_new_config = function (config, new_root_dir)
+          config.settings.workspaceFolder = {
+            uri = vim.uri_from_fname(new_root_dir),
+            name = vim.fn.fnamemodify(new_root_dir, ':t'),
+          }
+        end
 			})
 
 			lspconfig.omnisharp.setup({
@@ -108,6 +114,7 @@ return {
 						)
 					end
 
+					vim.keymap.set("n", "<leader>e", vim.diagnostic.open_float, { desc = "Display errors" })
 					vim.keymap.set("n", "K", vim.lsp.buf.hover, { desc = "Display symbol info", buffer = ev.buf })
 				end,
 			})