Description of problem:

Ghostwriter (RPM version) fails to open in my Fedora 35 machine.

Version-Release number of selected component (if applicable):

```
rpm -qi ghostwriter
Name        : ghostwriter
Version     : 2.0.2
Release     : 2.fc35
Architecture: x86_64
Install Date: seg 01 nov 2021 22:52:38
```

How reproducible:

Just try to execute `ghostwriter` from terminal.

Actual results:

```
> ghostwriter
QSocketNotifier: Can only be used with threads started with QThread
Using pandoc version 2.14.0.3
Using multimarkdown version 6.6.0
Using cmark version 0.29.0
[26191:26234:1102/090228.427294:ERROR:gl_context_egl.cc(259)] eglCreateContext failed with error EGL_BAD_CONTEXT
[26191:26234:1102/090228.427325:ERROR:gpu_channel_manager.cc(753)] ContextResult::kFatalFailure: Failed to create shared context for virtualization.
[26191:26234:1102/090228.427345:ERROR:shared_image_stub.cc(470)] SharedImageStub: unable to create context
[26191:26234:1102/090228.427356:ERROR:gpu_channel.cc(449)] GpuChannel: Failed to create SharedImageStub
[26191:26234:1102/090228.427398:ERROR:gl_context_egl.cc(259)] eglCreateContext failed with error EGL_BAD_CONTEXT
[26191:26234:1102/090228.427461:ERROR:gpu_channel_manager.cc(753)] ContextResult::kFatalFailure: Failed to create shared context for virtualization.
[26191:26234:1102/090228.427470:ERROR:shared_image_stub.cc(470)] SharedImageStub: unable to create context
[26191:26234:1102/090228.427478:ERROR:gpu_channel.cc(449)] GpuChannel: Failed to create SharedImageStub
qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
The Wayland connection experienced a fatal error: Protocol error
>
```

Expected results: Open successfully `ghostwriter`

**Notes**: 

- I'm using an hybrid graphics setup (Intel + NVidia) on Wayland at Fedora 35. I don't know if this affects this bug. I just saw this bug: <https://github.com/NVIDIA/egl-wayland/issues/41>