* append a filemtime timestamp to js/css files to work around browser caching after update
* shuffle script handling around a bit
* also user pages cant have community content
* also fix breadcrumbs on items page
* moving commonly used strings to defines
* moving commonly reused/similar page generation functions to the parent
* generally using consistent return types, more type hints and less strings
* prevent browser context menu when right clicking on UI elements with their own context menus
* fixed menu path for icons
