Make content layout consistent

Closes #5

See merge request fachschaft/wp-theme!6

Add custom style for blockquotes

See merge request fachschaft/wp-theme!7

Hotfix broken posts lists

See merge request fachschaft/wp-theme!4

Not enough to fully complete #3, but we'll deploy it immediately

Resolve "Landing page breaks in mobile mode"

Closes #2

See merge request fachschaft/wp-theme!3

Closes #2

Resolve "Rewrite theme"

Closes #1

See merge request fachschaft/wp-theme!2

Not exactly Semantic Versioning though, because we don't have a public API,
but I like the MAJOR.MINOR.PATCH format, so we're going with that

TinyMCE is no longer available as editor by default,
so those colors are unnecessary