Faceted Search:
* Modify faceted-search clear filter to be able to remember category id if it exists.
* 26316: Hide show the category image and description when one or more facet selected
* Css formatting & bemize product-tiles
* Hide footer when mobile filters are shown
* Added ContentMgr to centralize the state of footer/header display
* updated header/footer controllers and views to watch the ContentMgr state
* updated theme-settings: use ContentMgr hide/show header/footer as part of its lifecycle
* Disable touch activation for snap-js menu.
* prototype hide/show of snap menu for mobile facets visible case
* fix style for mobile facet togle control