feat(sings): use new diagnostic configuration + improve UI

lua/config/plugins/lsp_config.lua

@@ -1,5 +1,11 @@
 local lspconfig = require("lspconfig")
 
+vim.lsp.handlers["textDocument/publishDiagnostics"] = vim.lsp.with(
+	vim.lsp.diagnostic.on_publish_diagnostics, {
+		virtual_text = true
+	}
+)
+
 lspconfig.clangd.setup({})
 
 lspconfig.lua_ls.setup({