v0.3.3

Added

• the selected mode travels along its guide in the 3D viewer, and job previews show a modes job whole (#61)
• (validation) the cases' math as LaTeX, rendered by KaTeX in the studio and on the site (#62)
• flip through a sweep's points in the viewer, each with its structure and its modes (#67)
• a materials catalogue with provenance, and a Materials page in the studio (#70)

Fixed

• (studio) a release in the making is announced as on its way, not as an error (#58)
• the check refuses windows that run backwards, a step that isn't positive and sweeps a run can't take; a width sweep's point shows its own cross-section (#68)
• new run events go after the old ones, so their discriminants keep their values (#69)

Documentation

• method write-ups' math as GitHub renders it (#63)