Remove Github Autoupdate

Signed-off-by: Simon Kraft <simon@krafit.de>
Streamlined header CSS and PHP

Signed-off-by: Simon Kraft <simon@krafit.de>
Updated Footer

Signed-off-by: Simon Kraft <simon@krafit.de>
Updated a CSS, Removed GoogleFonts, Removed Edit Link from pages

Signed-off-by: Simon Kraft <simon@krafit.de>
Added Support for wpSEO and WordPress SEO

Signed-off-by: Simon Kraft <simon@krafit.de>
Updated Screenshot (HiDPI)

Signed-off-by: Simon Kraft <simon@krafit.de>