GeoNetwork opensource

Backport #8078 **Authored by:** @josegar74

[Backport 4.2.x] Fix presence of duplicated or missing geonet elements after partial metadata updates

1

Backport #7265 **Authored by:** @CMath04

[Backport 4.2.x] fix #geonetwork/core-geonetwork/issues/7930

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Backport #7931 **Authored by:** @igea-jure

[Backport 4.2.x] Editor / Remove wrong ERROR log message on multilingual records

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Backport #8049 **Authored by:** @fxprunayre

[Backport 4.2.x] OpenAPI / Operation returning no content should not advertised a schema.

1

Backport #8349 **Authored by:** @fxprunayre

[Backport 4.2.x] Fix the schema artifact name in add schema script

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Backport #8375 **Authored by:** @josegar74

[Backport 4.2.x] ISO19139 / ISO19115.3 / Index resource date fields as defined in the metadata.

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Backport #8365 **Authored by:** @josegar74