Support multiple journal abbreviations lists

[koppor]

Background

JabREf has suport to abbreviate and unabbreviate journal names: https://docs.jabref.org/advanced/journalabbreviations

With #9504, JabRef has much better internal handling of journal lists.

Feature

The dropdown of JabRef should not show a single "JabRef built in list", but should show the various lists we offer.

Steps:

1. Create a good title for the list
   1. Option 1: Make https://github.com/JabRef/abbrv.jabref.org/tree/main/journals#readme a table and parse the table
   2. Option 2: Hard-code .csv file and journal list title (This is a quick win)
   3. Option 3: Add title to CSV file (The title could be added (using # which indicates a comment)) - refs second item of Improve journal list handling jabref-koppor#48

Instead of a dropdown, have a list of

• build-in lists
• external lists
• custom list

Similar to "Databases" at SLR:

Or similar to the "Protected Terms File"

Then, one can enable and disable with a click.

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Attention: There are dotless and dot abbreviation lists - maybe the UI should distinguish them, too.

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• List of journals will be hard-coded

• MVStore should store each list in a separate table

• Converter needs to be adapted

The yellow one should be replaced, the green one should be kept - and updated upon selection change at the yellow one.

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Optionally, online lists could be downloaded - User could point to https://github.com/JabRef/abbrv.jabref.org/tree/main/journals and select a list from there - or "just" put a CSV online link.