Add a "view as BibTeX" option before importing an entry from the cita… #18883

Job	Run time
CHANGELOG.md	14s
CHANGELOG.md - only unreleased touched	15s
Checkstyle	2m 5s
Code coverage	33s
Database tests	2m 30s
Validate Gradle Wrapper	7s
GUI tests	1m 51s
Markdown	5s
Find merge conflicts	4s
Modernizer	1m 6s
OpenRewrite	2m 19s
Source branch is other than "main"	8s
Validate requiremenet coverage	24s
Unit tests	6m 45s
upload-pr-number	2s
	18m 28s

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