user guide: improve repetitiveness of remote access section (#18088)
Fixes #17944
Summary of the issue:
* The description of "This action cannot be undone." in "Delete all
trusted fingerprints" is inaccurate and can be easily restored by
pressing NVDA+Ctrl+R.
* The Remote Access section in the user guide is fairly repetitive, in
particular the Setting Up a Remote Access session, and the Remote Access
Dialog section.
Note that #17944 also mentions two problems which from my reading seem
to already be addressed by previous PRs:
1. The usage of "Allow this machine to be controlled", "Control another
machine", "Relay Server", "Direct Connection" is outdated.
2. "You can assign further commands in the Remote section of the Input
Gestures dialog." This sentence should be adjusted appropriately to
emphasize assigning shortcut keys to commands that have not assigned
keys.
Description of user facing changes
* Remote access settings - delete fingerprints: remove note that this
action cannot be undone from both the warning dialog and the user guide,
as reverting NVDA's config will restore these.
* Remote access Getting Started section in user guide: again remind the
user that enable remote access needs to be checked before the Remote
Access menu in the Tools menu will be available.
* userguide: rewrite the Setting Up a Remote Access Session, merging the
Remote Access Dialog section directly into it, removing repetitiveness.
Description of development approach
n/a
Testing strategy:
n/a
Known issues with pull request:
None known.