Replace f64-based types with f32-based types inside pan_orbit_camera

Sub-issue of #19741

Original upstream version of [`pan_orbit_camera`](https://github.com/bevyengine/bevy/tree/main/crates/bevy_camera_controller/src/pan_orbit_camera) had support for custom transforms(e.g. f64-based).
As we are not going to special-case support for non-``GlobalTransform`` transforms, f32-based types would be fully sufficient for Bevy's needs.

## Additional context

Further discussions are welcome in [#editor-dev](https://discord.com/channels/691052431525675048/789987800014651412)

Start by reviewing the pan_orbit_camera implementation in crates/bevy_camera_controller/src/pan_orbit_camera, linked from the issue. Identify the f64-based types used there and replace them with f32-based types, then verify that the camera controller still builds and behaves consistently with Bevy's GlobalTransform usage.

Written by the indexing model from the issue text.