feat: User icon improved.

refactor: Many small changes.
fix: Search on product search site works.

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feat: Payments control added.

feat: New template settings (show / hide shop categories menu).

#1

feat: user currency -> the user can now have his own currency, so he can use the exchange rate to display the price in his currency.

feat: New controL --> Lang Currency Switch.

feat: Bricks in all layouts have brick id in their wrappers.
feat: Design stylign (layouts).

feat: Spacing optimalized between content and bricks (grid, template-grid, template-row).
feat: 2 from 4 layouts adapted.
feat: Flexbox to manage left and right sidebar.

feat: Template layouts (no-sidebar, start-page).
feat: Template settings caching.

feat: User profile menu -> show user avatar and short info in mobile.

feat: Styling changes.

refactor: Small basket button to remove product from shopping cart changed (trash icon). #2