v.1.7.8

cerebroAppLite 1.7.8

Trajectory tab

• Trajectory module: restores the pseudotime trajectory explorer from the
  original cerebroApp v1.3 (projection coloured by state/pseudotime, states by
  group, expression metrics along pseudotime, per-state gene/transcript counts).
  The code is Roman Hillje's original implementation, restructured into the
  v1.4 sub-file layout with no functional change.
• Conditional tab: the Trajectory tab is inserted dynamically
  (insertConditionalTab) only for data sets whose .crb carries trajectory
  data — the same content-driven sidebar mechanism used by the Immune
  Repertoire and Extra material tabs.
• Demo data: the monocle2 pseudotime trajectory is now bundled inside the
  demo_full_tcr_bcr.crb demo (computed on its B-cell subset) instead of a
  separate demo_trajectory.crb, so one demo shows TCR + BCR + trajectory. The
  trajectory is reproducible via data-raw/build_trajectory_demo.R.

What's Changed

• feat: pseudotime Trajectory tab by @duocang in #69
• style: format code via air by @mihem in #70

Full Changelog: v1.7.7...v1.7.8