## Summary of the Pull Request
When we're restoring from fullscreen, we do a little adjustment to make sure to clamp the window bounds within the bounds of the active monitor. We unfortunately didn't account for the size of the non-client area (the invisible borders around our 1px border). This didn't matter most of the time, but if the window was within ~8px of the side of the monitor (any side), then restoring from fullscreen would actually move it to the wrong place.
As it turns out, the `_quake` window is within ~8px of the edges of the monitor _very often_.
## References
* regressed in #9737
## PR Checklist
* [x] Closes#10199
* [x] I work here
* [ ] Tests added/passed
* [n/a] Requires documentation to be updated
## Validation Steps Performed
The repro in the bug was fairly straightforward. It doesn't happen anymore.
f058b08fde