remove long explanation copy from search page
closes #1011
show the search term in the search input
remove the short search explanation copy
"Enter your postcode, MP name, electorate or debate topic:"
add a label to the search form
avaiable to screen readers only
remove the member/postcode search instructions
those are on the homepage where most of those searches take place
move search form into section (lemon) header
remove :on_load, "givefocus('query')" from search
this doesn't work and according to @henare was there for php compatibility
add input type "search"
add html5 input attributes autofocus & autosave
remove redundant query from search page title
add proper for attribute to search form label
use bootstrap input group pattern for search form
use the salient blue style for search button
make the search form wider on wide screens
use the h1 as the search form label on /search
use italic lead style for label-heading (scss only)
add sections with ids to search results
remove stray/empty 'else' statement (cleanup only)
make the search no-results copy more helpful
use 'required' attribute to stop empty search requests