i18n+ui: backlog quick-wins sweep (F-32/33/34/35/44/45/47/50/58/62 + 2 mediums)

Cluster of the v1.4.21 carry-over items that each landed in ≤5 LOC.

- F-32 — drop the duplicate help paragraph beneath the dashboard
  settings header; the page-level description already covers it
- F-33 / F-34 — replace `&` with "and"/"und" in the measurements and
  mood subtitles
- F-35 — unify the test-notification button label
  (notificationTestSend) with the user-facing notificationStatus.sendTest
- F-44 — drop the `LOKI_ENDPOINT` env-var name from the user-facing
  monitoring help text; reads as "Loki integration" instead
- F-45 — admin/users table column reads "Name" instead of repeating
  the page title "Users"
- F-47 — /notifications event-matrix first column reads "Event" instead
  of repeating the page title "Notifications" — new notifications.eventColumn key
- F-50 — soften every DE error-toast "Bitte erneut versuchen" to
  "Bitte versuche es erneut", matching the friendlier tone we already
  use in the Coach error path
- F-58 — admin/reminders section header swaps Clock for Bell so the
  card icon matches the admin-shell nav tile
- F-62 — DE dashboard `greetingSalutation` reads "Hallo, {name}"
  instead of the English "Hi, {name}"
- D-CR-M-03 — formatTokenName regex broadens to non-Z ISO offsets so a
  `+02:00` timestamp suffix renders as the locale-aware chunk like a
  `Z` suffix already does
- D-DSGN-M-04 — moodLog "Copy" button uses common.copy instead of
  stripping the `!` off common.copied

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/components/settings/dashboard-layout-section.tsx

@@ -181,9 +181,17 @@ export function DashboardLayoutSection({ id }: { id: string }) {
           {t("dashboard.layoutReset")}
         </Button>
       </div>
-      <p className="text-muted-foreground text-sm">
-        {t("dashboard.customizeSubtitle")}
-      </p>
+      {/*
+        v1.4.22 D / F-32 — the surrounding `<DashboardSection>` page
+        already renders a `settings.sections.dashboard.description`
+        paragraph beneath the H1. The previous in-card help line
+        repeated the same idea ("Choose which cards appear …
+        Defaults work out of the box.") right next to the comparison
+        picker, giving the page three muted-foreground help blocks
+        stacked on top of each other. Removing this duplicate keeps
+        the comparison picker as the only thing between the header
+        and the widget table.
+      */}
 
       {/* v1.4.16 phase B8 — comparison baseline picker. Lives at the top
           of the section because it changes how every chart + tile below

src/components/settings/integrations-section.tsx

@@ -721,7 +721,10 @@ function MoodLogCard({
                       setMsgType("success");
                     }}
                   >
-                    {t("common.copied").replace("!", "")}
+                    {/* v1.4.22 D / D-DSGN-M-04 — use the proper
+                        common.copy key instead of stripping the
+                        exclamation off common.copied. */}
+                    {t("common.copy")}
                   </Button>
                 </div>
                 <p className="text-muted-foreground mt-1 text-xs">