feat: centralize shared page layouts

webui/tsconfig.component-tests.json

@@ -27,6 +27,7 @@
     "tests/icon-button.test.tsx",
     "tests/mail-components.test.tsx",
     "tests/metric-card.test.tsx",
+    "tests/page-layout.test.tsx",
     "tests/people-picker.test.tsx",
     "tests/password-generator.test.tsx",
     "tests/resource-access-explanation.test.tsx",
@@ -44,6 +45,11 @@
     "src/components/passwordGenerator.ts",
     "src/components/MessageDisplayPanel.tsx",
     "src/components/MetricCard.tsx",
+    "src/components/PageLayout.tsx",
+    "src/components/PageScrollViewport.tsx",
+    "src/components/PageTitle.tsx",
+    "src/components/LoadingFrame.tsx",
+    "src/components/LoadingIndicator.tsx",
     "src/components/people/PeoplePicker.tsx",
     "src/components/people/peoplePickerTypes.ts",
     "src/components/ResourceAccessExplanation.tsx",