Fix broken tables (#2283)

- fix(app): hide blocks explorer
- feat(app): filter connections to show open ones
- fix(app): use cached data in transfers table
- feat(app): new connections table
- feat(app): use chainsgate for connections table
- refactor(app): simplify table data processing
- feat(app): succint transfers table
- refactor(app): migrate channels table to new structure
- refactor(app): migrate index-status table to new structure
- fix(app): disable packets explorer
- chore(app): cleanup