[contrib.glfw3] new project version 3.4.0.20240731

[ypujante]

This contains 2 new versions with the following release notes for the underlying project:

3.4.0.20240731 - 2024-07-31

• Added emscripten_glfw_get_clipboard_string the C version of emscripten::glfw3::GetClipboardString to
  retrieve the clipboard asynchronously
• Added a helper class emscripten::glfw3::FutureClipboardString to greatly simplify the more frequent use-cases
• GetClipboardString::value() now returns the internal clipboard in case of error, instead of throwing exception
• Added optimizationLevel option to the emscripten port

3.4.0.20240727 - 2024-07-27

• Introduced C++ API (namespace emscripten::glfw3) included with GLFW3/emscripten_glfw3.h:
  • provides a more correct API with sensible defaults (ex: std::string_view / std::optional<std::string_view>
    vs char const * which may or may not be nullptr)
  • allow for C++ only API (ex: std::future)
  • the C API is still available if you would rather stick to it
• Implemented emscripten::glfw3::GetClipboardString which provides a way of fetching the global
  clipboard in a browser environment (glfwGetClipboardString is not the right API due to the asynchronous nature
  of the underlying platform API).
• The cursor position is no longer clamped to the window size, and as a result, can have negative values or values
  greater than the window size.
  Note that GLFW implements a similar behavior on the macOS desktop platform.
• Implemented glfwSetWindowPosCallback
• Added support for GLFW Window Attribute GLFW_HOVERED
• Fixed #6: emscripten_glfw_make_canvas_resizable does not clean up properly.
• Fixed an issue with opacity: when using opacity, the handle is not working unless its z-index is higher than the
  canvas z-index

[ypujante]

@sbc100 Hi Sam. All tests are passing. Any chance my PR gets in before the next emscripten release? I have some changes (async clipboard access) that are pretty important for a problem I am trying to solve in ImGui.

I also wanted to let you know a few things:

• contrib.glfw3 is now officially supported in ImGui since the latest release (1.91.0) and that is really cool :). As far as I know this is the first project with official support.
• I released an actual application/tool that uses contrib.glfw3 and ImGui: WebGPU Shader Toy
• For the purpose of this tool, I actually turned ImGui into an emscripten port which is by far the most complex port I wrote so far. But it is really cool because it makes using ImGui trivial: --use-port=imgui.py:backend=glfw:renderer=wgpu

[sbc100]

• I released an actual application/tool that uses contrib.glfw3 and ImGui: WebGPU Shader Toy

Nice! @kainino0x might be interested in that

[ypujante]

Thank you @sbc100!