Rename postgresql to postgres -> fix silently failing migrations ...

Signed-off-by: TheArcaneBrony <myrainbowdash949@gmail.com>

Implement WebAuthn (#967) ...

* implement webauthn

* code review

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Co-authored-by: Madeline <46743919+MaddyUnderStars@users.noreply.github.com>

Script to add license preamble to each file. Also, does that. (#935) ...

* Add script to automatically add license to each file

* Add license preamble to each file.

* Fix existing preamble detection breaking due to line endings. Git :(

* Prevent license from being added to code with other licenses

Fix guild delete failing when template exists