fix(linux): incorrect monitor size, fixes: #175 (#176)

* use geometry() to get monitor size

* add .change file

* Update linux-monitor-size.md

.changes/linux-monitor-size.md

@@ -0,0 +1,5 @@
+---
+"tao": patch
+---
+
+Fixes incorrect monitor size on Linux.

src/platform_impl/linux/monitor.rs

@@ -28,9 +28,10 @@ impl MonitorHandle {
 
   #[inline]
   pub fn size(&self) -> PhysicalSize<u32> {
+    let rect = self.monitor.geometry();
     PhysicalSize {
-      width: self.monitor.width_mm() as u32,
-      height: self.monitor.height_mm() as u32,
+      width: rect.width as u32,
+      height: rect.height as u32,
     }
   }