1. dataProvider.component.html: Show 'Related Content Providers' only when there are results (publications and/or datasets and/or software and/or other).
2. searchFilter.component.html: Use 'filterValuesNum' field for method 'getSelectedAndTopValues()'.
3. searchFilter.component.ts: Default value for 'filterValuesNum' field changed from 4 to 6.
git-svn-id: https://svn.driver.research-infrastructures.eu/driver/dnet40/modules/uoa-services-library/trunk/ng-openaire-library/src/app@58568 d315682c-612b-4755-9ff5-7f18f6832af3
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