customised admin menu nav

- removed dashboard widgets
- changed user abilitys for shop manager
- removed support for background customisation
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updated custom post types

 - added shop the shoot
- added archive page for sts and tll
- added single page for lls
added header widget
styled products and category

- added third grid and sixth grid for top of category pages
- made changes to headbar and datebox margins and border
- added the shop now cat button
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added the screenshot.png image & login-logo.png
removed top advert image
styled category page