refactor: use "import type" syntax

For some reason, "import { type A }" does not work in some cases:

> node_modules/engine.io-client/build/esm/socket.d.ts:2:15 - error TS1005: ',' expected.

> 2 import { type Packet, type BinaryType, RawData } from "engine.io-parser";

References: https://www.typescriptlang.org/docs/handbook/modules.html#importing-types

Author: darrachequesne

lib/socket.ts

@@ -4,13 +4,8 @@ import { decode } from "./contrib/parseqs.js";
 import { parse } from "./contrib/parseuri.js";
 import debugModule from "debug"; // debug()
 import { Emitter } from "@socket.io/component-emitter";
-import {
-  protocol,
-  type Packet,
-  type BinaryType,
-  type PacketType,
-  RawData,
-} from "engine.io-parser";
+import { protocol } from "engine.io-parser";
+import type { Packet, BinaryType, PacketType, RawData } from "engine.io-parser";
 import { CloseDetails, Transport } from "./transport.js";
 
 const debug = debugModule("engine.io-client:socket"); // debug()

lib/transport.ts

@@ -1,4 +1,5 @@
-import { decodePacket, type Packet, type RawData } from "engine.io-parser";
+import { decodePacket } from "engine.io-parser";
+import type { Packet, RawData } from "engine.io-parser";
 import { Emitter } from "@socket.io/component-emitter";
 import { installTimerFunctions } from "./util.js";
 import debugModule from "debug"; // debug()