GeoNetwork-UI v2.4.0 alpha 2

This new alpha version brings many improvements to the Metadata Editor app as well as a lot of fixing/polishing to improve the user experience.

More complete patch notes will follow soon.

What's Changed

• [ME]: Clean up attachments on publishing by @rcaplier in #1004
• Deploy Metadata Converter app on gh-pages by @jahow in #1012
• chore(deps): bump webpack and @angular-devkit/build-angular by @dependabot in #1014
• Metadata Editor / support multilingual values in certain fields by @jahow in #1011
• Datahub: fix untranslated text and wrong search filters in organizations page by @jahow in #1016
• ME: drop publishing support below 4.2.5 by @LHBruneton-C2C in #1018
• [ME]: Add search filters by @tkohr in #1015
• chore(deps-dev): bump markdown-to-jsx from 7.3.2 to 7.5.0 by @dependabot in #1019
• [Editor]: Fix cleanup attachments function by @cmoinier in #1023
• Datahub: Some minor improvements by @tkohr in #1017
• [Editor]: Change tab name for metadata-record by @cmoinier in #1026
• [Editor]: Make first page default for record edition by @cmoinier in #1025
• [Technical debt] Migration to ng-icons by @cmoinier in #1020
• [Editor]: Rework action-menu by @cmoinier in #1024
• chore(deps): bump http-proxy-middleware from 2.0.6 to 2.0.7 by @dependabot in #1027
• [DH/Editor] : Sort by changeDate by default by @cmoinier in #1022
• [Editor]: Use correct font family and sizes by @cmoinier in #1029
• Datahub: improvements to the record page (header & abstract) by @jahow in #1028
• chore: update ogc-client by @jahow in #1031
• [Editor]: Hide open data toggle by @cmoinier in #1033
• [Editor]: About section various fixes by @cmoinier in #1034
• fix: add wrap to home buttons to avoid mobile horizontal scroll by @f-necas in #1038
• Metadata Editor: constraints fields by @Angi-Kinas in #1032
• [Editor]: Bug - Update frequency not kept by @cmoinier in #1041
• Datahub / fix some layout issues by @jahow in #1044
• feat: adds opengraph to records by @f-necas in #1042

Full Changelog: v2.4.0-alpha.1...v2.4.0-alpha.2