Fix Remote Access as follower (#18947)
Fixes #18938
Summary of the issue:
Attempting to control NVDA via the Remote Access feature fails on recent alphas.
Description of user facing changes:
It works again.
Description of developer facing changes:
Some constants from winUser have been made enum members in winBindings.user32.
Description of development approach:
Removed the definitions of INPUT, KEYBDINPUT, HARDWAREINPUT, MOUSEINPUT, INPUT_TYPE and KEYEVENTF from _remoteClient.input.
Changed Remote Access's keyboard code to use structures from winBindings.user32.
Also moved duplicate constants from winUser and added deprecation code and notes to the user docs.
