release: v0.4.0

[jma]

• Fixes holding type serial detection which make impossible the holding
  serials create. This was due to the introduction of the document
  issuance field.
• Uses ngx formly 5.9.
• Renames 'Admin and monitoring' menu entry to 'Admin'
• Adds 'Reports and monitoring' entry to main menu.
• Adds items brief view component to display item in results list.
• Adds route configuration.
• Adapts frontpage to center content.
• Adapts holding-item brief views.
• Adapts item detail view to add second call number field.
• Adds new fields: issuance, series statement, partOf.
• Removes partOf field from brief view.
• Corrects notes display.
• Updates ngx-formly to v5.9.1.
• Changes the sequence of editor initalization to avoid concurency
  problem with the JSONSchema loading.
• Adds a new idAttribute Pipe component in Angular application
• Changes document detail view to:
  • add id= on barcode link
  • add id= on deletion button link
• Improves the README structure.
• Adds UCLouvain in the copyright declaration.
• Adds badges.
• Downgrades the ngx-spinner version for compatibility with Angular 8.
• Updates two HTML templates to use spinner on ng-core components
  because the migration to ngx-spinner removed the old spinner.
• Uses ng-core v0.6.0.
• Adds a custom directive allowing to order tabs
• Closes The tab order of the document detailed view (pro interface) should be: get / description rero-ils#1078
• Adds Id on all menus ('My Account' menu, languages menu, help menu,
  logout, etc.) for testing purposes.
• Closes Reduce size of title in document detailed view rero-ils#880

Co-Authored-by: Johnny Mariéthoz Johnny.Mariethoz@rero.ch

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