1. rangeFilter.component.html: Disable button if form is invalid or not dirty (unchanged).
2. loading.component.ts: Added loading gif and <ng-content>.
3. searchResult.component.html: Add class "uk-margin-top" in <ul> (in order to align filters and results).
4. searchFilter.component.html: [Bug fix] class in <ng-container> does nothing. Move class="uk-animation-fade filterItem searchFilterItem uk-text-small" to <div> element (in view more).
5. newSearchPage.component.ts: Close offcanvas for filters (in small screens) when query changes.
6. newSearchPage.component.html: Align filters and results | Use same code for filters in all screens (<ng-template #filters_column>).
git-svn-id: https://svn.driver.research-infrastructures.eu/driver/dnet40/modules/uoa-services-library/trunk/ng-openaire-library/src/app@58326 d315682c-612b-4755-9ff5-7f18f6832af3
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