Bug fixes and DOM changes

• contact block component updated to look more like the design
• the margin and dom of the usp list has been updated to look more like the design
• fixed negative margin where 2 blocks overlap each other on the c-article component
• changed home, calculation and calculation popup page navigation
• removed page intro and replaced it with variabele grid component, updated on blog overview, calculation tool, calculation popup, faq
• fixed buttons in the blog overview page
• added load more button on the blog overview page
• fixed picture cropping on the spotlight component
• guide and faq component restructure and bugs fixed