[Version] Bump version to 0.2.39, update prebuilt WASMs

[CharlieFRuan]

Changes

Main changes include:

• New prebuilt models:
  • Phi3-mini
  • StableLM-2-zephyr-1.6B
  • Qwen1.5-1.8B
  • Hermes2-Pro-Llama-3-8B to prebuilt models
• Updates on ModelRecord fields
  • For detail see: [Config] Enhance ModelRecord #435
• Update all WASMs
  • For detail see: [Models] Add Phi3-mini, StableLM 1.6B, Qwen 1.8B, update MLC runtime #433
  • Update all WASMs to v0.2.39
  • Support grammar for Llama3, hence update examples/json-mode to use Llama3 and Hermes2-pro-Llama3-8B for function calling in examples/json-schema
• Use loglevel package:
  • For details see [Log] Set log level using 'loglevel' package #427
• Fix index.js.map issue for Vite
  • [Fix][Vite] Fix error for index.js.map #420
• Enhance error handling and ServiceWorker

TVMjs

TVMjs compiled at apache/tvm@71f7af7

• Main changes include:
  • [Web] Fix string to uint8 array for special characters apache/tvm#17031
  • [Web] Add dtype and offset for CreateView in runtime apache/tvm#17028
  • [WebGPU] Update error messages to be more user-friendly apache/tvm#17021

WASM version

• All wasms updated to 0.2.39 via [WASM] Update prebuilt wasms to version 0.2.39 binary-mlc-llm-libs#123 for new MLC-LLM runtime (mainly grammar)