Show the partner's name, and count in the unit that was asked for

A partner added during onboarding appeared as "Parent 2" on the overview
until you navigated away and back: the members list had been fetched before
that partner existed and nothing refetched when the wizard finished. The
fallback was doing its job; it was covering for stale data.

A period drawn on the calendar is measured in days, but a shortfall was
reported in the weeks the engine had rounded it to, so seven days came back
as three weeks. It now reports what was actually asked for.

frontend/src/i18n/en/calendar.ts

@@ -80,6 +80,10 @@ export const calendar = {
     '{name} ({start}–{end}): none of the {weeksWished} week(s) requested could be funded — {shortfallDays} day(s) short',
   'calendar.toastShortfallPartial':
     '{name} ({start}–{end}): only {weeksFunded} of {weeksWished} week(s) funded — {shortfallDays} day(s) short',
+  'calendar.toastShortfallNoneDays':
+    '{name} ({start}–{end}): none of the {daysWished} day(s) requested could be funded — {shortfallDays} day(s) short',
+  'calendar.toastShortfallPartialDays':
+    '{name} ({start}–{end}): only {daysFunded} of {daysWished} day(s) funded — {shortfallDays} day(s) short',
   'calendar.undoButton': 'Undo',
   'calendar.undoError': 'Failed to undo the change',
   'calendar.dismissToastAria': 'Dismiss the message',