chore(deps): take @conduction/nextcloud-vue 2.27.0 (#882)

Carries the two KPI-card fixes this dashboard reads: the canonical card is flat
and horizontal (no grey box inside the white card CnWidgetWrapper already
draws), and a calendar-aligned date range follows the reader's calendar rather
than UTC — "Current month" previously showed a To of 1 September in CEST on
31 August.

The caret range already allowed it; only the lockfile pinned this app back.
Lockfile only, and npm pruned nothing.

Author: rubenvdlinde