Split servoshell into Desktop and common part (#32457)

* servoshell: Move desktop files

Move files related to winit into a desktop module.
This is a preparation to merge the android and ohos apps into
servoshell.

* servoshell: Format imports

* servoshell: Move panic hook into separate file

* servoshell: Move desktop main

* Consider ohos as not desktop

* servoshell: Adjust dependencies for shared code

* servoshell: Remove native-bluetooth from default features

There currently is no good way to have target specific default features.

* Rename desktop_main.rs to cli.rs

* Remove todo

ports/servoshell/desktop/geometry.rs

@@ -0,0 +1,15 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+use euclid::{Point2D, Size2D};
+use servo::style_traits::DevicePixel;
+use winit::dpi::{PhysicalPosition, PhysicalSize};
+
+pub fn winit_size_to_euclid_size<T>(size: PhysicalSize<T>) -> Size2D<T, DevicePixel> {
+    Size2D::new(size.width, size.height)
+}
+
+pub fn winit_position_to_euclid_point<T>(position: PhysicalPosition<T>) -> Point2D<T, DevicePixel> {
+    Point2D::new(position.x, position.y)
+}