rewrote the way $saveDetails are updated during saving and loading
- this fixes statistics menu not counting idb saves
- also fixes autosaves count increasing when autosaves are disabled
- as part of the latter, there's also a new widget to generate sleep links now

other changes:
- fixed furniture code trying to update on `:start2` instead of `<<variablesStart2>>`
- fixed a `<<reroute>>` call that tripped t3lt linter
- all changed files had trailing whitespace auto-trimmed
- FIXED NON-IDB SAVES BEING BROKEN SINCE V0.4.2.5