v1.4.1 — fix clickable done steps; ↗ affordance

Bug fixes

Clickable completed steps now actually work

`LEADTRACKER_CLICKABLE` was included in the settings-page bool-save loop but had no UI checkbox, so every settings save silently wrote it as `0`. The flag has been removed from the loop and the behaviour hardcoded on — there is no reason to disable "click a completed step to view the record that closed it."

↗ glyph on done-link labels

Completed steps that link to a record now show a subtle ↗ after their label in the static (non-hover) state, giving a visible affordance without hover. The → reserved for current-stage action links ("go do this") is kept distinct.