GET /api/ogen - generate social media image

Query parameters:
width - int image width (default 1200)
height - int image height (default 628)
title - string main image text (left-top aligned, large font)
author - string source author (left-bottom aligned, medium bold font)
website - string source link (left-bottom aligned, medium light font)
logo - string url to source logo (right-bottom aligned, cropped to 250 max width)
background - string url to image background (black background by default)
title.font - string title font (default OpenSans-SemiBold.ttf)
title.font.size - number title font size (default 80)
author.font - string title font (default OpenSans-SemiBold.ttf)
author.font.size - number author font size (default 50)
website.font - string title font (default OpenSans-Light.ttf)
website.font.size - number author font size (default 50)
background.dim - int dim background (0-255) (default 0)
background.frame - bool use dark frame on top of the background (default false)