allow for 'silent' to be set as default option

[TheReverendB]

In light of Discord screwing with linked images and basically ruining FOW and Overlays, I suggest this option. I hope I got it right - I did not test it at all.

What Alias/Snippet is this for?

!map

Summary

Here goes a short summary about what the PR is about.
Allows for a default 'silent' option

Checklist

PR Type

• This PR is a code change that implements a feature request.
• This PR fixes an issue.
• This PR adds a new feature that is not an open feature request.
• This PR is not a code change (e.g. documentation, README, ...)

Other

• This PR is a breaking change (e.g. methods or parameters removed/renamed)
• If code changes were made then they have been tested.
• I have updated the documentation to reflect the changes.
• I properly commented my code where appropriate