message: webgpu.h: Fix WGPU_WHOLE_SIZE causing linking errors.
  The symbol was not marked as static and would cause linking errors
  because it would be defined in multiple translation units. Replace it
  with a more traditional C-style #define.
diff: #include <stddef.h>
  #include <stdbool.h>
  -const uint64_t WGPU_WHOLE_SIZE = 0xffffffffffffffffULL; // UINT64_MAX
  +#define WGPU_WHOLE_SIZE (0xffffffffffffffffULL)
  typedef uint32_t WGPUFlags;
  