Address UI requirements

[nikhil153]

UI Panels

• Niivue
• SVG montages
• IQM distributions (optional)

TODOs

• Verify Niivue support for processed output formats from freesurfer
• Verify Niivue support for processed output formats from qsiprep
• Verify Niivue support for processed output formats from fmriprep
• Allow rendering of multiple SVG montages (add corresponding example qc.json)
• Allow rendering of any single UI panel (add corresponding example qc.json)
• Allow rendering of only Niivue and SVG UI panels (add corresponding example qc.json)