New or edited MARC-related file extension setting shows odd results

NOTE: dev work may not be needed; verify after MODSOURMAN-497 and MODDATAIMP-464 are done

Overview: When the more specific MARC types (MARC_Bib, MARC_Authority, MARC_Holding) were introduced, were out of sync with the choices on the File extension Create/Edit setting. Bugs UIDATIMP-937 and UIDATIMP-938 should get them sorted out properly

Current workaround None

Steps to Reproduce:

1. Log into FOLIO-snapshot-load as diku_admin
2. Go to Settings/Data import/File extensions
3. Issue 1
4. Create a new file extension setting
   • File extension: .aaa
   • Data type: MARC
5. Save and review the file extension summary screen
6. Issue 2
7. Edit the existing file extension setting for .mrc
8. Delete the MARC option from the list of data types

Expected Results:
Issue 1: When MARC is selected on the Create screen, then MARC shows in the summary screen and applies to all 3 record types.
Issue 2: When editing an existing file extension setting, the user should only see MARC instead of the 3 more specific MARC record types

Actual Results:
Issue 1: When MARC is selected and the new setting saved, the summary screen shows MARC_BIB instead of all 3 MARC record types or only MARC
Issue 2: When editing an existing file extension for MARC, if the user deletes MARC, the values for MARC_AUTHORITY and MARC_HOLDING also disappear and leave blank values with an x

Additional Information: See attached video