0.41.0 Optimize build times

what

• Remove utterances (no longer used)
• Use makefile build dependencies on node_modules to only rebuild when it doesn't exist
• Move targets into tasks for organization
• Reorganize Dockerfile for layer caching
• Pin htmltest to last working version
• Run all commands in docker and stop trying to use native (too many variables)

why

• Faster builds
• Not in use anymore
• Less dependencies on third-party modules with possible security warnings