mangal v3.1.0

Changelog

• where command now prints to stdout. It can be used like that: cd $(mangal where --config)
• Mini mode was completely rewritten to look exactly like ani-cli
• PDF is a default export format now (was plain)
• Plain icons are default now (were emoji)
• New icons added - "squares"
• New command mangal config remove to... well... remove config
• Minor bug fixes and improvements