* upstream/main: (25 commits)
  Update Gradle Wrapper from 7.4.2 to 7.5. (JabRef#8986)
  New translations JabRef_en.properties (Russian) (JabRef#8985)
  [Bot] Update CSL styles (JabRef#8978)
  New Crowdin updates (JabRef#8972)
  New Crowdin updates (JabRef#8969)
  Fix .bat errorlevel handling with pwsh.exe check (JabRef#8965)
  revert jsoup version upgrade
  Fix charset detection with utf16 and others (JabRef#8947)
  Bump classgraph from 4.8.147 to 4.8.149 (JabRef#8968)
  Bump jsoup from 1.15.1 to 1.15.2 (JabRef#8967)
  Keep UTF-8 encoding header if present (JabRef#8964)
  Cleanup index when opening a library (JabRef#8962)
  Refactor context menu entry types changing (JabRef#8957)
  Improvement on check for missing commas when importing or opening a .bib file (JabRef#8840)
  Disable ResearchGateTest on CI (JabRef#8955)
  Bump checkstyle from 10.1 to 10.3.1 (JabRef#8950)
  Bump checkstyle from 10.1 to 10.3.1 (JabRef#8950)
  Bump mariadb-java-client from 2.7.5 to 2.7.6 (JabRef#8953)
  Add notification when adding previous entries to new group configuration (JabRef#8919)
  Remember Sidepane width after restart (JabRef#8936)
  ...

* upstream/main:
  Autosave folder and checkbox is remembered (JabRef#9000)
  New Crowdin updates (JabRef#8999)
  Sync group view mode and main table (JabRef#8993)
  Bump unoloader from 7.3.4 to 7.3.5 (JabRef#8996)
  Bump libreoffice from 7.3.4 to 7.3.5 (JabRef#8997)
  Bump java-diff-utils from 4.11 to 4.12 (JabRef#8998)
  Fix external group metadata changes are not merged (JabRef#8994)
  New Crowdin updates (JabRef#8995)
  Reworded t in pr (JabRef#8989)
  Fixed checkstyle (JabRef#8990)
  Fix RfcFetcherTest (JabRef#8988)
  Fixes koppor#521 - Allow to drag&drop selected bib entries to other library tabs (JabRef#8982)