lowercase charset utf-8
move `<title>` after `<meta charset="utf-8"/>`
charset should be in the first 1024 bytes and the title after the charset definition
unify self closing tags
Signed-off-by: Michael Weimann <mail@michael-weimann.eu>
migrate buttons and badges
Signed-off-by: Michael Weimann <mail@michael-weimann.eu>
upgrade bootstrap, fix devtool
remove postcss-preset-env
remove npm-run-all
add theme info to design
add theme configs for 2-15
make all themes compile
fix node env in script
refactor theme config
make all themes basically working
fix sass 3rd party warnings
replace slash div by math.div