[Library & common-assets | develop]: Minor updates in mobile screens in icons/ paddings in landing pages.

1. resultLanding.component.html & project.component.html & dataProvider.component.html & organization.component.html: In mobile (small) screens, change ratio of icons in bottom action bar from 2 to 1.4.
2. showIdentifiers.component.ts: In mobile (small) screens, added in fs-modal classTitle="uk-tile-default uk-border-bottom".
3. landing.less: Added variable @landing-action-bar-mobile-border: @global-border; to use it in border-top of landing-action-bar-mobile > div | Changed padding of landing-action-bar-mobile > div to 8px in top and bottom.

explore/src/app/openaireLibrary

@@ -1 +1 @@
-Subproject commit a53c4e90d099d0bf3919df55edceaf7f793427d0
+Subproject commit 587297a1c8792aae49153e9c330d21822e174244