Fixes #195: server svg font
This may not be ideal, but a potential workaround for the svg fonts on the server is to overwrite the font-family in the svg plot code before sending them to the zipped output. sans-serif on most OSs should default to Arial. You can test on the deployed app: https://rconnect.chs.usgs.gov/peakfq-dev/
Still talking to the Posit admins about other solutions, though.