Bugfix release: fix newlines being all weird in notifications

• (package.json) removes dependency on 'ansi-colors' 6331c76
• (colors.ts) fixes newlines not rendering properly by using 'kleur' instead of 'ansi-colors' d10447d
• (package.json) adds dependency on 'kleur' 0b2fac5

v1.2.5...v1.2.6