Issue #3572629: Fix table name for group content fields in 'l10n_groups_ron' view.

Andreas Henningsrequested to merge
issue/l10n_server-3572629:3572629-fix-l10n_groups_ron-broken-views-handlers into 3.0.x

This fixes broken views handlers. Without this, the ModuleViewsIntegrityTest::testModuleViewsIntegrity will fail.

Closes #3572629

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