Update changelog, change note for custom nav
Release 4chan X v1.2.0.
png
Changelog styling
More changelog styling
Backlinks
Change board navigation default
Merge branch 'v3'

Conflicts:
	CHANGELOG.md
	LICENSE
	builds/4chan-X.js
	builds/4chan-X.meta.js
	builds/appchan-x.user.js
	builds/crx/manifest.json
	builds/crx/script.js
	latest.js
	package.json
	src/General/css/style.css