[Library | new-theme]: Redesign of project landing page and small upadates on result landing and common components.

1. addThis.component.ts: Updated social icons of addThis.
2. landing-header.component.ts: Added "uk-text-small" in subtitle.
3. metrics.component.ts: Added method "clickedMetrics()" to set "metricsClicked" | Added metricsClicked and metrics.infos conditions for loading table or iframes | Added customContainerClass and customIframeClass in <i-frame>.
4. project.component: Updated project landing page according to UI redesign.
5. project.module.ts: Import LoadingModule, IconsModule, InputModule.
6. project.service.ts: Use parsingFunctions.parseDescription.
7. projectService.module.ts: iconsService.registerIcons([link, graph]).
8. resultLanding.component.html: Small fixes in ui | Added right arrow on tooltips of actions that are links to other pages | Display of description updated as innerHtml (#7345).
9. orcid-work.component.ts: Added flex=true in <icon>.
10. input.component.ts: Added disabled?: boolean in Option interface and show disabled options as muted.
11. projectInfo.ts: Updated description to be string[] instead of string.
12. iframe.component.ts: Added @Input() customContainerClass: string = ""; and @Input() customIframeClass: string = "";
13. search-tab.component.ts: Updated according to redesign | Update "getEntityName()" to return values from OpenaireEntities.
14. tabs.component.ts: Added "uk-height-1-1" in custom tabs | In #mytabs::before set left:0.

explore/src/app/openaireLibrary

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-Subproject commit fc2fbb5ba008712b856a60d28e341dc1475fab80
+Subproject commit e658c5d23aa85a6fc5359fbe77486cb6b5208403

explore/src/assets/common-assets

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-Subproject commit 542a34e6077d1e7835500a81669b29e9b465ebb5
+Subproject commit 99f61af20353f6a9a4fc31e60372151bfd5f71cb