Glfw not propagating window resize events

Window `resize` events are not piped to glfwSetFramebufferSizeCallback nor glfwSetWindowSizeCallback making the application unaware that the browser window was dynamically resized.

Adding this code to library_glfw fixes the issue for me:

```
window.addEventListener("resize", () => {
GLFW.onCanvasResize(window.innerWidth, window.innerHeight);
});
```

**Version of emscripten/emsdk:**

emcc (Emscripten gcc/clang-like replacement + linker emulating GNU ld) 3.1.47 (431685f05c67f0424c11473cc16798b9587bb536)
clang version 18.0.0 (https://github.com/llvm/llvm-project 21030b9ab4487d845e29792063f5666d8c4b8e09)
Target: wasm32-unknown-emscripten
Thread model: posix
InstalledDir: C:\git\emsdk\upstream\bin