Update to MADR 4.0.0

[RabidGhost]

Closes #11912

Updates ADRs to MADR 4.0.0 format and fixes some small typos in existing ADRs.

Mandatory checks

Items unchecked are not applicable.

•  I own the copyright of the code submitted and I licence it under the MIT license
•  Change in CHANGELOG.md described in a way that is understandable for the average user (if applicable)
•  Tests created for changes (if applicable)
•  Manually tested changed features in running JabRef (always required)
•  Screenshots added in PR description (for UI changes)
•  Checked developer's documentation: Is the information available and up to date? If not, I outlined it in this pull request.
•  Checked documentation: Is the information available and up to date? If not, I created an issue at https://github.com/JabRef/user-documentation/issues or, even better, I submitted a pull request to the documentation repository.