…ledgeItems

* upstream/main:
  Fixed table update in eft preferences (#9051)
  Keep EOL setting at backups (#9048)
  ExternalFileTypes singleton refactor (#9044)
  Fix dead link (#9047)
  Fix performance regresssion (#9045)

# Conflicts:
#	CHANGELOG.md

* upstream/main: (31 commits)
  Citavi Importer - Import all knowledge items (JabRef#9043)
  Fixed table update in eft preferences (JabRef#9051)
  Keep EOL setting at backups (JabRef#9048)
  ExternalFileTypes singleton refactor (JabRef#9044)
  Fix dead link (JabRef#9047)
  Fix performance regresssion (JabRef#9045)
  Update javafx to 18.02
  import citavi knowledge items (JabRef#9033)
  Fix .gitattributes for CHANGELOG.md
  [GSOC22] - B - Implement merging fields in the three way merge UI (JabRef#9022)
  [GSOC22] - A - Implement a fully functional three way merge UI (JabRef#8945)
  Change button label from "Return to JabRef" to "Return to library" (JabRef#9039)
  Bump postgresql from 42.4.0 to 42.4.1 (JabRef#9036)
  Bump org.javamodularity.moduleplugin from 1.8.11 to 1.8.12 (JabRef#9037)
  Bump slf4j-api from 2.0.0-alpha7 to 2.0.0-beta1 (JabRef#9035)
  Bump slf4j-api from 2.0.0-alpha7 to 2.0.0-beta1 in /buildSrc (JabRef#9038)
  Update Gradle Wrapper from 7.5 to 7.5.1. (JabRef#9034)
  Refactor of DOI import failure dialog, import format reader and clipboard manager (JabRef#8839)
  Snapcraft and issue template
  Show development information\n\n+semver: minor
  ...

* upstream/main:
  Fix performance regresssion (#9045)