rolling release

see full diff v1.0.20210415...v1.0.20220426

featured:

• github/reddit source enhancements (thanks @seanbreckenridge )
• signal source (thanks @ankostis )
• obsidian source (thanks @Sanqui )
• hackernews source (thanks @telotortium)
• logseq source (thanks @yoyurec )
• takeout module using new parser: https://github.com/seanbreckenridge/google_takeout_parser
  falls back to the old one if unavailable, so should be backwards compatible