fix(webui): translate MetricCard content

webui/tsconfig.component-tests.json

@@ -23,6 +23,7 @@
     "tests/explorer-tree.test.tsx",
     "tests/icon-button.test.tsx",
     "tests/mail-components.test.tsx",
+    "tests/metric-card.test.tsx",
     "tests/people-picker.test.tsx",
     "tests/resource-access-explanation.test.tsx",
     "tests/selection-list.test.tsx",
@@ -30,6 +31,7 @@
     "src/components/email/EmailAddressInput.tsx",
     "src/components/PasswordField.tsx",
     "src/components/MessageDisplayPanel.tsx",
+    "src/components/MetricCard.tsx",
     "src/components/people/PeoplePicker.tsx",
     "src/components/people/peoplePickerTypes.ts",
     "src/components/ResourceAccessExplanation.tsx",