v1.2.3: macOSMonterey cursor (sharp tail cursors)

[ful1e5]

What kind of change does this PR introduce?

Added

• macOSMonterey cursors added 🎊 #66 fixed
• Generate master bitmaps.zip inside bin directory
• Makefile binaries targets with variable
• pling docs: size and support info updated
• bigsur cursor bitmapper as node package
• New commands added inside Makefile for bitmapper
• symlink script for macOSMonterey svg files

Changed

• Removed unnecessary badges from README.md
• Simplified README.md (removed emojis)
• sponsor with liberapay
• fixed text cursor state in xterm & vertical-text (increase border size) #67
• bitmapper core as node package
• macOSBigSur .svg files moved to svgs/bigsur directory

Checklist

• [x] Documentation
• [x] Testing
• [x] Ready to be merged
• [ ] Added myself to contributors table