More pages

Added multiple pages and changed the menu to an icon grid (icons coming soon).

Signed-off-by: Joeri Bakker <joeri@halfjebruin.nl>
Merge branch 'main' of https://github.com/joeribakker/markt into main

Signed-off-by: Joeri Bakker <joeri@halfjebruin.nl>

Conflicts:
	templates/page.template.php
Fix of merge

Signed-off-by: Joeri Bakker <joeri@halfjebruin.nl>