celestron-aux: track after slew bug

[ijessen]

Describe the bug
When the mount is tracking a target and the user issues a move command, the tracking is paused and the mount slews as expected. However, once the command is ended, the scope resumes tracking the original target. The tracking target is not updated to reflect the mount position at the end of the move command.

There is already code in place to update the tracking target at the end of the move, but it depends on a flag m_ManualMotionActive being set . This isn't happening during the move commands.

To Reproduce
Exact steps to reproduce the behavior.

1. Run driver
2. Track target
3. Command move away from target
4. Watch the mount slowly reacquire the original target after the move command is ended