Refactor DIP/File actions, fix ancestors 404s, v2 api and improve audit logs

[eduardojst10]

• DIP refactoring

  • merged logic from BrowseDIPActionsToolbar and BrowseDIPFileActionsToolbar into a single class BrowseDIPContentActionsToolbar
  • permission fix of 403 forbidden, permission method constant PERMISSION_METHOD_DELETE_DIP correctly updated 'deleteDIPs' - RODA now uses method name for roda-permission.properties
  • 404 handling with error handling using .handle and completable futures when fetching dipFIleAncestors, preventing ui crash if 404 appears
  • fixed issue where deleting a DIP and choosing not to follow the job would leave the user on a static/empty page. The UI now correctly redirects the user to the parent AIP page upon DIP destruction logic

• Audit logs

  • updated both DIPFile and Files controllers to inject relatedObjectId and specific parameters into RequestControllerAssistant, referencing parent Dip and AIP respectively
  • added i18n entries and list configs for BrowseDIP_auditLogs

• Files

  • ungrouped download button, only download action now

• Documentation

  • removed obsolete copy_gwt_rpc.sh
  • consequently corrected DEV_NOTES.md regarding gwt debugging instructions