Backwards compatibility

SearchSync was previously called Tangible Algolia. The old names still work, so existing sites and custom code keep running.

What	Old name	New name	Status
Shortcodes	tgbl_algolia_*	tgbl_searchsync_*	Permanent aliases
PHP classes	Tangible\Algolia\*	Tangible\SearchSync\*	Aliased for one major version
PHP hooks	tgbl_alg_*, tgbl_ss_*	tangible_searchsync_*	Both run; the new name runs last
JS hit template filter	tangible-algolia-hit-template	tangible_searchsync_hit_template	Both run
JS preselect filter	tangible-algolia-preselect-refinement	searchsync.filters.preselect	Both run
Instances global	window.tangibleAlgoliaInstances	window.tangibleSearchsyncInstances	Both set
Instance event	algoliaInstanceCreated	searchsyncInstanceCreated	Both fired

Some CSS classes, such as algolia-widget, kept their old names on purpose so existing theme styles don't break.