import math.js into replace2

More fixes do to new grid system.
FIX:

• Pipe variables in grids
• upgrade to Bootstrap 5 caused issues with PWA ... fixed
• load math.js as an esm module to prevent pushing requirements to PWA.
• Update the QUEST dev tools ...
• Accept previous values as get params for testing
• Fix safari "cannot click button" bug
• Adjust CSS font size