[docs] prefix match on all words in sentence (#8969)
[docs] prefix match on all words in sentence (#8969)

* add searchbar

* cleanup

* cleanup

* improve alignment of other menu items; xslt doesn't appear to support higher utf characters

* improve searchbar appearance in firefox

* don't allow documentation theme to override search border on focus, set documentation-view height to auto

* additional styling improvements  for documentation pages, mobile view

* add docsearch css to docs template

* hide search

* enforce style on search page

* dynamic import, de-prioritize background

* cleanup

* fix search smaller

* fix

* prefix match fix

* prefixAll

* focus and advancedSyntax
danking/hail,danking/hail,cseed/hail,danking/hail,hail-is/hail,hail-is/hail,hail-is/hail,danking/hail,cseed/hail,hail-is/hail,danking/hail,danking/hail,hail-is/hail,cseed/hail,cseed/hail,cseed/hail,hail-is/hail,hail-is/hail,cseed/hail,cseed/hail,hail-is/hail,danking/hail,cseed/hail,danking/hail