Consolidate the personal, team and organisation settings surfaces behind a single
system so every page shares one width, one navigation implementation and one copy
standard.
- add shared SettingsNav (aria-current active state, exact matching for the team
General route, non-interactive section labels) and delete the four divergent nav
implementations it replaces
- constrain the settings content column to max-w-3xl in all three layouts and strip
the per-page max-w-2xl/max-w-xl wrappers so forms and tables render identically
- rewrite SettingsHeader subtitles to remove "Here you can" / "On this page" filler,
normalize title casing and punctuation, and translate the hardcoded team general
header
- align the billing header with SettingsHeader typography and drop redundant fieldset
width constraints in the document/email preference forms
- fix the wrong team group success toast, team email meta title, misnamed page
exports, untranslated Manage label and Create Team casing mismatch
- update manage-organisation e2e assertions for the corrected copy