Merge changes If66094f1,I2be0999f,I3001c01f,I6af8183f,I1af34282, ... into main

* changes:
  Add javadoc for NotifPipeline.setNotifBundler
  Type check BundleEntry in PreparationCoordinator
  Implement NotifBundler pluggable
  Update ListAttachState.section javadoc
  Hide bundle in shelf for lockscreen minimalism
  Null check representativeEntry in RankingCoordinator
  Move getSectionIndex impl to PipelineEntry
  Remove getSection override in BundleEntry