v3.0.0

CerebroNexus 3.0.0

Renamed package and application

• Unified the R package, Shiny application, and GitHub repository under the
  CerebroNexus name. Install from mihem/CerebroNexus and load the package
  with library(CerebroNexus).
• Kept the established Cerebro data model and public API, including .crb
  files, Cerebro_v1.3, Cerebro.options, launchCerebro(), and
  convertSeuratToCerebro().
• Updated the HLA export metadata field to CerebroNexus_version.

What's Changed

• Rename package and app to CerebroNexus by @mihem in #89
• style: format code via air by @mihem in #90

Full Changelog: v2.3.0...v3.0.0