Add a "view as BibTeX" option before importing an entry from the cita… #18882

Job	Run time
Checkstyle	2m 2s
OpenRewrite	2m 15s
Modernizer	1m 2s
CHANGELOG.md	12s
CHANGELOG.md - only unreleased touched	16s
Database tests	2m 46s
GUI tests	1m 24s
Markdown	7s
Unit tests	6m 3s
Code coverage	33s
Validate Gradle Wrapper	5s
Find merge conflicts	4s
Source branch is other than "main"	2s
Validate requiremenet coverage	23s
upload-pr-number	2s
	17m 16s

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