Frontpage Search: Show search results on separate page and simplify start page search box

[mariobehling]

The start page search currently filters results in the featured event area.

Expected is:

• When performing the search, open results in the search page at https://eventyay.com/explore

Furthermore simplify the start page search:

• Only show search box for "Event Name" and "Search"
• Do not show location box
• Do not show date filter on front page