1. advancedSearchForm.component.html: Updated width in div for entity selection in advanced search form (uk-width-large@m uk-width-2-5@xl uk-width-1-1).
2. newSearchPage.component.html: In <advanced-search-form> added horizontal padding (on the left it was already there) - the form is centered and leaves some space from the right side of page.
3. aggregators.ts:
a. Commented background css in .search_box_bg.
b. Do not apply custom button css for .uk-button-text with parent .search_box_bg or #searchForm.
c. Added padding: 10px in buttons with parent .search_box_bg or #searchForm.