Rework footer links/icons

Stay in PHP more...

+ Set icons & attributes in an array
+ Loop through array instead of setting individially in PHP + HTML
+ Formatting changes
Updated accessibility & formatting

+ Added role attribute to header
+ Broke title into multiple lines (adds spacing before logo)
+ Load install button or search form depending on db connect
Replace INI CSP file with JSON

Removed the INI, added JSON, and modified CSP function

Needed to cast results to array.